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29 lines
1.3 KiB
29 lines
1.3 KiB
<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="System">
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<select id="selectMaxHistoryInfo" resultType="com.lp.bean.TableSystem">
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SELECT TABLE_NAME as table_name FROM information_schema.TABLES WHERE
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TABLE_NAME LIKE '%iot_history_sensor_data%'
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ORDER BY TABLE_NAME DESC LIMIT 1 ;
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</select>
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<select id="selectHistoryInfo" resultType="com.lp.bean.TableSystem" parameterType="com.lp.bean.TableSystem" >
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SELECT TABLE_NAME as table_name FROM information_schema.TABLES WHERE
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TABLE_NAME LIKE '%iot_history_sensor_data%'
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AND table_schema= #{db_name}
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</select>
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<update id="createHistoryTable" parameterType="com.lp.bean.TableSystem" statementType="STATEMENT">
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CREATE TABLE iot_history_sensor_data_${table_index} LIKE iot_history_sensor_data_1;
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</update>
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<update id="modifyHistoryTable" parameterType="com.lp.bean.TableSystem" statementType="STATEMENT">
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ALTER TABLE iot_history_sensor_data UNION(${table_names}) ;
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</update>
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<select id="selectHistoryCount" parameterType="com.lp.bean.TableSystem" resultType="java.lang.Integer" statementType="STATEMENT" >
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SELECT COUNT(1) as num FROM iot_history_sensor_data_${table_index}
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</select>
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</mapper>
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