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1113 lines
26 KiB
1113 lines
26 KiB
using cd.dapper.extension;
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using Dapper;
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using learun.util;
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using Oracle.ManagedDataAccess.Client;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Data.Common;
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using System.Text;
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using System.Threading.Tasks;
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namespace learun.database.oracle
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{
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/// <summary>
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/// 版 本 EasyCode EC管理后台
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/// Copyright (c) 2019-present EC管理有限公司
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/// 创建人：tobin
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/// 日 期：2019.09.09
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/// 描 述：数据库操作方法实现
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/// </summary>
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public class OracleDataBase : IDataBase
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{
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private ISqlAdapter sqlAdapter;
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/// <summary>
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/// 当前使用的数据库链接对象
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/// </summary>
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private DbConnection dbConnection { get; set; }
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/// <summary>
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/// 事务对象
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/// </summary>
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private DbTransaction dbTransaction { get; set; }
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/// <summary>
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/// 构造函数
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/// </summary>
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/// <param name="connString">数据库连接地址</param>
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public OracleDataBase(string connString)
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{
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sqlAdapter = new OracleAdapter();
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dbConnection = new OracleConnection(connString);
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}
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#region 事务
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/// <summary>
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/// 开启事务
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/// </summary>
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/// <returns>The trans.</returns>
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public IDataBase BeginTrans()
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{
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if (dbConnection.State == ConnectionState.Closed)
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{
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dbConnection.Open();
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}
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dbTransaction = dbConnection.BeginTransaction();
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return this;
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}
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/// <summary>
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/// 提交
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/// </summary>
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public void Commit()
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{
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try
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{
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dbTransaction.Commit();
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}
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catch
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{
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throw;
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}
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finally
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{
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this.Close();
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}
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}
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/// <summary>
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/// 把当前操作回滚成未提交状态
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/// </summary>
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public void Rollback()
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{
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try
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{
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dbTransaction.Rollback();
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}
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catch
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{
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throw;
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}
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finally
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{
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this.Close();
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}
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}
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/// <summary>
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/// 关闭连接 内存回收
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/// </summary>
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public void Close()
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{
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if (dbTransaction != null)
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{
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dbTransaction.Dispose();
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dbTransaction = null;
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}
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if (dbConnection != null)
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{
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dbConnection.Close();
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dbConnection.Dispose();
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dbConnection = null;
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}
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}
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#endregion 事务
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#region 执行sql语句
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/// <summary>
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/// 执行sql语句(带参数)
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/// </summary>
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/// <param name="strSql">sql语句</param>
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/// <param name="param">参数</param>
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/// <returns></returns>
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public async Task<int> ExecuteSql(string strSql, object param = null)
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{
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try
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{
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strSql = SqlFormat(strSql);
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var res = await dbConnection.ExecuteAsync(strSql, param, dbTransaction);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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#endregion 执行sql语句
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#region 执行存储过程
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/// <summary>
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/// 执行存储过程
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/// </summary>
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/// <param name="procName">存储过程名称</param>
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/// <param name="param">参数</param>
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/// <returns></returns>
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public async Task<int> ExecuteProc(string procName, object param = null)
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{
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try
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{
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var res = await dbConnection.ExecuteAsync(procName, param, dbTransaction, null, CommandType.StoredProcedure);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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/// <summary>
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/// 执行存储过程(查询实体数据)
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/// </summary>
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/// <param name="procName">存储过程名称</param>
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/// <param name="param">参数</param>
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/// <returns></returns>
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public async Task<T> ExecuteProc<T>(string procName, object param = null) where T : class
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{
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try
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{
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var res = await dbConnection.QueryFirstAsync<T>(procName, param, dbTransaction, null, CommandType.StoredProcedure);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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/// <summary>
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/// 执行存储过程(查询实体数据)
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/// </summary>
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/// <returns></returns>
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/// <param name="procName">存储过程名称.</param>
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/// <param name="param">参数</param>
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public async Task<dynamic> QueryFirstProc(string procName, object param = null)
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{
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try
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{
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var res = await dbConnection.QueryFirstAsync(procName, param, dbTransaction, null, CommandType.StoredProcedure);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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/// <summary>
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/// 执行存储过程(获取列表数据)
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/// </summary>
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/// <param name="procName">存储过程名称</param>
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/// <param name="param">参数</param>
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/// <returns></returns>
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public async Task<IEnumerable<T>> QueryProc<T>(string procName, object param = null) where T : class
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{
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try
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{
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var res = await dbConnection.QueryAsync<T>(procName, param, dbTransaction, null, CommandType.StoredProcedure);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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/// <summary>
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/// 执行存储过程(获取列表数据)
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/// </summary>
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/// <param name="procName">存储过程名称</param>
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/// <param name="param">参数</param>
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/// <returns></returns>
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public async Task<IEnumerable<dynamic>> QueryProc(string procName, object param = null)
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{
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try
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{
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var res = await dbConnection.QueryAsync(procName, param, dbTransaction, null, CommandType.StoredProcedure);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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#endregion 执行存储过程
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#region 对像实体 新增/修改/删除
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/// <summary>
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/// 插入实体数据
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/// </summary>
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/// <typeparam name="T">类型</typeparam>
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/// <param name="entity">实体数据</param>
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/// <returns></returns>
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public async Task<int> Insert<T>(T entity) where T : class
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{
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try
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{
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string sql = SqlHelper.Insert<T>(sqlAdapter);
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var res = await dbConnection.ExecuteAsync(sql, entity, dbTransaction);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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/// <summary>
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/// 更新实体数据
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/// </summary>
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/// <returns></returns>
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/// <param name="entity">实体数据</param>
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/// <param name="isOnlyHasValue">是否只更新有值的字段</param>
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/// <typeparam name="T">类型</typeparam>
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public async Task<int> Update<T>(T entity, bool isOnlyHasValue = true) where T : class
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{
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try
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{
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string sql = "";
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if (isOnlyHasValue)
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{
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var args = entity.ToJson().ToJObject();
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List<string> hasNoValueList = new List<string>();
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List<string> nullValueList = new List<string>();
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foreach (var item in args.Properties())
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{
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if (item.Value.Type == Newtonsoft.Json.Linq.JTokenType.Null)
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{
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hasNoValueList.Add(item.Name);
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}
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else if (item.Value.ToString() == "" || item.Value.ToString() == "1000-01-01 00:00:00")
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{
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nullValueList.Add(item.Name);
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}
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}
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sql = SqlHelper.Update<T>(sqlAdapter, hasNoValueList);
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foreach (var item in nullValueList)
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{
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sql = sql.Replace("?" + item, "null");
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}
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}
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else
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{
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sql = SqlHelper.Update<T>(sqlAdapter);
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}
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var res = await dbConnection.ExecuteAsync(sql, entity, dbTransaction);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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/// <summary>
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/// 删除实体数据
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/// </summary>
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/// <returns></returns>
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/// <param name="entity">实体数据</param>
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/// <typeparam name="T">类型</typeparam>
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public async Task<int> Delete<T>(T entity) where T : class
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{
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try
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{
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string sql = SqlHelper.Delete<T>(sqlAdapter);
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var res = await dbConnection.ExecuteAsync(sql, entity, dbTransaction);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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/// <summary>
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/// 删除数据根据给定的字段值
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/// </summary>
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/// <returns></returns>
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/// <param name="param">参数</param>
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/// <typeparam name="T">类型</typeparam>
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public async Task<int> DeleteAny<T>(object param) where T : class
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{
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try
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{
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if (param == null)
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{
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param = new { };
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}
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var jparam = param.ToJson().ToJObject();
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List<string> fields = new List<string>();
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foreach (var item in jparam.Properties())
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{
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if (!string.IsNullOrEmpty(item.Value.ToString()))
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{
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fields.Add(item.Name);
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}
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}
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string sql = SqlHelper.Delete<T>(sqlAdapter, fields);
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var res = await dbConnection.ExecuteAsync(sql, param, dbTransaction);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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#endregion 对像实体 新增/修改/删除
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#region 对象实体查询
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/// <summary>
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/// 获取单个实体数据
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/// </summary>
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/// <returns>单个实体数据</returns>
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/// <param name="keyValue">主键</param>
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/// <typeparam name="T">类</typeparam>
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public async Task<T> FindEntityByKey<T>(object keyValue) where T : class
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{
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try
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{
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string sql = SqlHelper.Select<T>(sqlAdapter);
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sql = SqlFormat(sql);
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var res = await dbConnection.QueryFirstOrDefaultAsync<T>(sql, new { id = keyValue }, dbTransaction);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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/// <summary>
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/// 获取单个实体数据
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/// </summary>
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/// <returns>单个实体数据</returns>
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/// <param name="sql">sql语句</param>
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/// <param name="param">参数</param>
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/// <typeparam name="T">类</typeparam>
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public async Task<T> FindEntity<T>(string sql, object param = null) where T : class
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{
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try
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{
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sql = SqlFormat(sql);
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var res = await dbConnection.QueryFirstOrDefaultAsync<T>(sql, param, dbTransaction);
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return res;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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if (dbTransaction == null)
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{
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this.Close();
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}
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}
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}
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/// <summary>
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/// 获取单个实体数据
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/// </summary>
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/// <returns>单个实体数据</returns>
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/// <param name="param">参数</param>
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/// <typeparam name="T">类</typeparam>
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public async Task<T> FindEntity<T>(object param) where T : class
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{
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try
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{
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if (param == null)
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{
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param = new { };
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}
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string sql = SqlHelper.SelectAll<T>(sqlAdapter) + " where 1=1 ";
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var jparam = param.ToJson().ToJObject();
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foreach (var item in jparam.Properties())
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{
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if (!string.IsNullOrEmpty(item.Value.ToString()))
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{
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sql += " AND " + item.Name + "=:" + item.Name;
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}
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}
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sql = SqlFormat(sql);
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var res = await dbConnection.QueryFirstOrDefaultAsync<T>(sql, param, dbTransaction);
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return res;
|
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}
|
|
catch (Exception ex)
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|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
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this.Close();
|
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}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取单个实体数据
|
|
/// </summary>
|
|
/// <returns>单个实体数据</returns>
|
|
/// <param name="sql">sql语句.</param>
|
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/// <param name="param">参数.</param>
|
|
public async Task<dynamic> FindEntity(string sql, object param = null)
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{
|
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try
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{
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sql = SqlFormat(sql);
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var res = await dbConnection.QueryFirstOrDefaultAsync(sql, param, dbTransaction);
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return res;
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}
|
|
catch (Exception ex)
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|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
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}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取数据列表
|
|
/// </summary>
|
|
/// <returns>列表数据</returns>
|
|
/// <param name="sql">sql语句.</param>
|
|
/// <param name="param">参数.</param>
|
|
/// <typeparam name="T">类型.</typeparam>
|
|
public async Task<IEnumerable<T>> FindList<T>(string sql, object param = null) where T : class
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{
|
|
try
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{
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sql = SqlFormat(sql);
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var res = await dbConnection.QueryAsync<T>(sql, param, dbTransaction);
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return res;
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}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
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this.Close();
|
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}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取数据列表
|
|
/// </summary>
|
|
/// <returns>列表数据</returns>
|
|
/// <param name="param">参数.</param>
|
|
/// <typeparam name="T">类型.</typeparam>
|
|
public async Task<IEnumerable<T>> FindList<T>(object param) where T : class
|
|
{
|
|
try
|
|
{
|
|
if (param == null)
|
|
{
|
|
param = new { };
|
|
}
|
|
string sql = SqlHelper.SelectAll<T>(sqlAdapter) + " where 1=1 ";
|
|
var jparam = param.ToJson().ToJObject();
|
|
foreach (var item in jparam.Properties())
|
|
{
|
|
if (!string.IsNullOrEmpty(item.Value.ToString()))
|
|
{
|
|
sql += " AND " + item.Name + "=@" + item.Name;
|
|
}
|
|
}
|
|
|
|
sql = SqlFormat(sql);
|
|
var res = await dbConnection.QueryAsync<T>(sql, param, dbTransaction);
|
|
return res;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取数据列表
|
|
/// </summary>
|
|
/// <returns>列表数据</returns>
|
|
/// <param name="sql">sql语句.</param>
|
|
/// <param name="param">参数.</param>
|
|
public async Task<IEnumerable<dynamic>> FindList(string sql, object param = null)
|
|
{
|
|
try
|
|
{
|
|
sql = SqlFormat(sql);
|
|
var res = await dbConnection.QueryAsync(sql, param, dbTransaction);
|
|
return res;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取数据列表（分页）
|
|
/// </summary>
|
|
/// <returns>列表数据</returns>
|
|
/// <param name="sql">sql语句</param>
|
|
/// <param name="param">参数</param>
|
|
/// <param name="orderField">排序字段</param>
|
|
/// <param name="isAsc">排序类型</param>
|
|
/// <param name="pageSize">每页数据条数</param>
|
|
/// <param name="pageIndex">页码</param>
|
|
/// <typeparam name="T">类</typeparam>
|
|
public async Task<(IEnumerable<T> list, int total)> FindList<T>(string sql, object param, string orderField, bool isAsc, int pageSize, int pageIndex) where T : class
|
|
{
|
|
try
|
|
{
|
|
sql = SqlFormat(sql);
|
|
StringBuilder sb = new StringBuilder();
|
|
sb.Append(GetPageSql(sql, orderField, isAsc, pageSize, pageIndex));
|
|
var resTotal = await dbConnection.ExecuteScalarAsync("Select Count(1) From (" + sql + ") As t", param, dbTransaction);
|
|
int total = Convert.ToInt32(resTotal);
|
|
var list = await dbConnection.QueryAsync<T>(sb.ToString(), param, dbTransaction);
|
|
return (list, total);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取数据列表（分页）
|
|
/// </summary>
|
|
/// <returns>列表数据</returns>
|
|
/// <param name="sql">sql语句</param>
|
|
/// <param name="param">参数</param>
|
|
/// <param name="orderField">排序字段</param>
|
|
/// <param name="isAsc">排序类型</param>
|
|
/// <param name="pageSize">每页数据条数</param>
|
|
/// <param name="pageIndex">页码</param>
|
|
public async Task<(IEnumerable<dynamic> list, int total)> FindList(string sql, object param, string orderField, bool isAsc, int pageSize, int pageIndex)
|
|
{
|
|
try
|
|
{
|
|
sql = SqlFormat(sql);
|
|
StringBuilder sb = new StringBuilder();
|
|
sb.Append(GetPageSql(sql, orderField, isAsc, pageSize, pageIndex));
|
|
var resTotal = await dbConnection.ExecuteScalarAsync("Select Count(1) From (" + sql + ") As t", param, dbTransaction);
|
|
int total = Convert.ToInt32(resTotal);
|
|
var list = await dbConnection.QueryAsync(sb.ToString(), param, dbTransaction);
|
|
return (list, total);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取数据列表（分页）
|
|
/// </summary>
|
|
/// <typeparam name="T">类</typeparam>
|
|
/// <param name="sql">sql语句</param>
|
|
/// <param name="param">参数</param>
|
|
/// <param name="pagination">分页参数</param>
|
|
/// <returns></returns>
|
|
public async Task<IEnumerable<T>> FindList<T>(string sql, object param, Pagination pagination) where T : class
|
|
{
|
|
bool isAsc = true && (string.IsNullOrEmpty(pagination.sord) || pagination.sord.ToUpper() == "ASC");
|
|
var (list, total) = await FindList<T>(sql, param, pagination.sidx, isAsc, pagination.rows, pagination.page);
|
|
pagination.records = total;
|
|
return list;
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取数据列表（分页）
|
|
/// </summary>
|
|
/// <param name="sql">sql语句</param>
|
|
/// <param name="param">参数</param>
|
|
/// <param name="pagination">分页参数</param>
|
|
/// <returns></returns>
|
|
public async Task<IEnumerable<dynamic>> FindList(string sql, object param, Pagination pagination)
|
|
{
|
|
bool isAsc = true && (string.IsNullOrEmpty(pagination.sord) || pagination.sord.ToUpper() == "ASC");
|
|
var (list, total) = await FindList(sql, param, pagination.sidx, isAsc, pagination.rows, pagination.page);
|
|
pagination.records = total;
|
|
return list;
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取表的所有数据
|
|
/// </summary>
|
|
/// <returns>列表数据</returns>
|
|
/// <typeparam name="T">类</typeparam>
|
|
public async Task<IEnumerable<T>> FindAll<T>() where T : class
|
|
{
|
|
try
|
|
{
|
|
string sql = SqlHelper.SelectAll<T>(sqlAdapter);
|
|
var res = await dbConnection.QueryAsync<T>(sql, null, dbTransaction);
|
|
return res;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion 对象实体查询
|
|
|
|
#region 数据源查询
|
|
|
|
/// <summary>
|
|
/// 查询方法，返回datatable
|
|
/// </summary>
|
|
/// <returns>datatable数据</returns>
|
|
/// <param name="sql">sql语句</param>
|
|
/// <param name="param">参数</param>
|
|
public async Task<DataTable> FindTable(string sql, object param = null)
|
|
{
|
|
try
|
|
{
|
|
sql = SqlFormat(sql);
|
|
var IDataReader = await dbConnection.ExecuteReaderAsync(sql, param, dbTransaction);
|
|
var dt = DBCommonHelper.IDataReaderToDataTable(IDataReader);
|
|
IDataReader.Dispose();
|
|
return dt;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 分页查询方法，返回datatable
|
|
/// </summary>
|
|
/// <returns>datatable数据</returns>
|
|
/// <param name="sql">sql语句</param>
|
|
/// <param name="param">参数</param>
|
|
/// <param name="orderField">排序字段</param>
|
|
/// <param name="isAsc">排序类型</param>
|
|
/// <param name="pageSize">每页数据条数</param>
|
|
/// <param name="pageIndex">页码</param>
|
|
public async Task<(DataTable list, int total)> FindTable(string sql, object param, string orderField, bool isAsc, int pageSize, int pageIndex)
|
|
{
|
|
try
|
|
{
|
|
sql = SqlFormat(sql);
|
|
StringBuilder sb = new StringBuilder();
|
|
sb.Append(GetPageSql(sql, orderField, isAsc, pageSize, pageIndex));
|
|
int total = Convert.ToInt32(await dbConnection.ExecuteScalarAsync("Select Count(1) From (" + sql + ") As t", param, dbTransaction));
|
|
var IDataReader = await dbConnection.ExecuteReaderAsync(sb.ToString(), param, dbTransaction);
|
|
var dt = DBCommonHelper.IDataReaderToDataTable(IDataReader);
|
|
IDataReader.Dispose();
|
|
return (dt, total);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 分页查询方法，返回datatable
|
|
/// </summary>
|
|
/// <param name="sql">sql语句</param>
|
|
/// <param name="param">参数</param>
|
|
/// <param name="pagination">分页参数</param>
|
|
/// <returns></returns>
|
|
public async Task<DataTable> FindTable(string sql, object param, Pagination pagination)
|
|
{
|
|
bool isAsc = true && (string.IsNullOrEmpty(pagination.sord) || pagination.sord.ToUpper() == "ASC");
|
|
var (list, total) = await FindTable(sql, param, pagination.sidx, isAsc, pagination.rows, pagination.page);
|
|
pagination.records = total;
|
|
return list;
|
|
}
|
|
|
|
#endregion 数据源查询
|
|
|
|
#region 获取数据库表信息
|
|
|
|
/// <summary>
|
|
/// 获取数据库表信息
|
|
/// </summary>
|
|
/// <returns>数据库表信息</returns>
|
|
public async Task<IEnumerable<dynamic>> GetDataBaseTable()
|
|
{
|
|
try
|
|
{
|
|
StringBuilder strSql = new StringBuilder();
|
|
strSql.Append(@"
|
|
select distinct col.table_name name,
|
|
0 reserved,
|
|
0 fdata,
|
|
0 index_size,
|
|
nvl(t.num_rows, 0) sumrows,
|
|
0 funused,
|
|
tab.comments tdescription,
|
|
column_name pk
|
|
from user_cons_columns col
|
|
inner join user_constraints con
|
|
on con.constraint_name = col.constraint_name
|
|
inner join user_tab_comments tab
|
|
on tab.table_name = col.table_name
|
|
inner join user_tables t
|
|
on t.TABLE_NAME = col.table_name
|
|
where con.constraint_type not in ('C', 'R') ORDER BY col.table_name
|
|
");
|
|
var res = await dbConnection.QueryAsync(strSql.ToString(), null, dbTransaction);
|
|
return res;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取表的字段信息
|
|
/// </summary>
|
|
/// <returns>表的字段信息</returns>
|
|
/// <param name="tableName">表名</param>
|
|
public async Task<IEnumerable<dynamic>> GetDataBaseTableFields(string tableName)
|
|
{
|
|
try
|
|
{
|
|
StringBuilder strSql = new StringBuilder();
|
|
strSql.Append(@"SELECT
|
|
col.column_id f_number,
|
|
col.column_name f_column,
|
|
col.data_type f_datatype,
|
|
col.data_length f_length,
|
|
NULL f_identity,
|
|
CASE uc.constraint_type
|
|
WHEN 'P' THEN
|
|
1
|
|
ELSE
|
|
NULL
|
|
END f_key,
|
|
CASE col.nullable
|
|
WHEN 'N' THEN
|
|
0
|
|
ELSE
|
|
1
|
|
END f_isnullable,
|
|
col.data_default f_defaults,
|
|
NVL(comm.comments, col.column_name) AS f_remark
|
|
FROM
|
|
user_tab_columns col
|
|
INNER JOIN user_col_comments comm ON comm.TABLE_NAME = col.TABLE_NAME
|
|
AND comm.COLUMN_NAME = col.COLUMN_NAME
|
|
LEFT JOIN user_cons_columns ucc ON ucc.table_name = col.table_name
|
|
AND ucc.column_name = col.column_name
|
|
AND ucc.position = 1
|
|
LEFT JOIN user_constraints uc ON uc.constraint_name = ucc.constraint_name
|
|
AND uc.constraint_type = 'P'
|
|
WHERE
|
|
col.table_name = :tableName
|
|
ORDER BY
|
|
col.column_id");
|
|
var res = await dbConnection.QueryAsync(strSql.ToString(), new { tableName }, dbTransaction);
|
|
return res;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取数据库地址信息
|
|
/// </summary>
|
|
/// <returns>数据库地址信息</returns>
|
|
public string GetDataSource()
|
|
{
|
|
try
|
|
{
|
|
return dbConnection.DataSource;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 测试数据库是否能链接成功
|
|
/// </summary>
|
|
/// <returns>The connection.</returns>
|
|
public string TestConnection()
|
|
{
|
|
try
|
|
{
|
|
BeginTrans();
|
|
Commit();
|
|
return "success";
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
return ex.Message;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 获取sql语句的字段
|
|
/// </summary>
|
|
/// <param name="strSql">sql语句</param>
|
|
/// <returns></returns>
|
|
public async Task<IEnumerable<string>> GetSqlColName(string strSql)
|
|
{
|
|
try
|
|
{
|
|
DataTable dt = null;
|
|
strSql = "select * from(" + strSql + ")t where rownum=1";
|
|
var IDataReader = await dbConnection.ExecuteReaderAsync(strSql, null, dbTransaction);
|
|
dt = DBCommonHelper.IDataReaderToDataTable(IDataReader);
|
|
|
|
List<string> res = new List<string>();
|
|
foreach (DataColumn item in dt.Columns)
|
|
{
|
|
res.Add(item.ColumnName);
|
|
}
|
|
return res;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
if (dbTransaction == null)
|
|
{
|
|
this.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion 获取数据库表信息
|
|
|
|
#region 私有方法
|
|
|
|
/// <summary>
|
|
/// 获取分页语句
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
/// <param name="strSql">sql语句</param>
|
|
/// <param name="orderField">排序字段</param>
|
|
/// <param name="isAsc">是否是升序</param>
|
|
/// <param name="pageSize">每一页大小</param>
|
|
/// <param name="pageIndex">页码</param>
|
|
private string GetPageSql(string strSql, string orderField, bool isAsc, int pageSize, int pageIndex)
|
|
{
|
|
StringBuilder sb = new StringBuilder();
|
|
if (pageIndex == 0)
|
|
{
|
|
pageIndex = 1;
|
|
}
|
|
int num = (pageIndex - 1) * pageSize;
|
|
int num1 = (pageIndex) * pageSize;
|
|
string OrderBy = "";
|
|
|
|
if (!string.IsNullOrEmpty(orderField))
|
|
{
|
|
if (orderField.ToUpper().IndexOf("ASC", StringComparison.Ordinal) + orderField.ToUpper().IndexOf("DESC", StringComparison.Ordinal) > 0)
|
|
{
|
|
OrderBy = " Order By " + orderField;
|
|
}
|
|
else
|
|
{
|
|
OrderBy = " Order By " + orderField + " " + (isAsc ? "ASC" : "DESC");
|
|
}
|
|
}
|
|
sb.Append("Select * From (Select ROWNUM lrrn,");
|
|
sb.Append(" T.* From (" + strSql + OrderBy + ") T ) N Where lrrn > " + num + " And lrrn <= " + num1 + "");
|
|
return sb.ToString();
|
|
}
|
|
|
|
/// <summary>
|
|
/// 格式化sql语句
|
|
/// </summary>
|
|
/// <param name="strSql">sql语句</param>
|
|
/// <returns>sql语句</returns>
|
|
private string SqlFormat(string strSql)
|
|
{
|
|
return strSql.Replace("@", ":");
|
|
}
|
|
|
|
#endregion 私有方法
|
|
}
|
|
}
|