<?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="com.whyc.mapper.LicenseMapper" >
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<insert id="add" parameterType="com.whyc.pojo.License">
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<!-- REPLACE into web_site.tb_license(id,serialNumber,duration,timeInUse) values(1,#{license.serialNumber},#{license.duration},#{license.timeInUse})-->
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merge into web_site.tb_license tgt
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using (select 1 as id) as src
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on tgt.id = src.id
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when matched then
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update set tgt.serialNumber = #{license.serialNumber},tgt.duration = #{license.duration},tgt.timeInUse = #{license.timeInUse}
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when not matched then
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insert(serialNumber,duration,timeInUse) values(#{license.serialNumber},#{license.duration},#{license.timeInUse})
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</insert>
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<update id="createTable">
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CREATE TABLE web_site.tb_license (
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id int(11) NOT NULL AUTO_INCREMENT,
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serialNumber varchar(255) NOT NULL DEFAULT '',
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duration varchar(255) NOT NULL DEFAULT '',
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timeInUse varchar(255) NOT NULL DEFAULT '',
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PRIMARY KEY (id) USING BTREE
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) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ;
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</update>
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<update id="reCreateTable">
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DROP TABLE IF EXISTS web_site.tb_license;
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CREATE TABLE web_site.tb_license (
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id int(11) NOT NULL AUTO_INCREMENT,
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serialNumber varchar(255) NOT NULL DEFAULT '',
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duration varchar(255) NOT NULL DEFAULT '',
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timeInUse varchar(255) NOT NULL DEFAULT '',
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PRIMARY KEY (id) USING BTREE
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) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ;
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</update>
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<update id="updateTimeInUse">
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update web_site.tb_license set timeInUse = #{timeInUse}
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</update>
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<select id="selectExist" resultType="java.lang.Integer">
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select count(*) num from information_schema.TABLES t where t.TABLE_SCHEMA ='web_site' and t.TABLE_NAME ='tb_license'
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</select>
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<select id="existColumn" resultType="java.lang.Integer">
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select count(*) num from information_schema.COLUMNS t where t.TABLE_SCHEMA ='web_site' and t.TABLE_NAME ='tb_license' and
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t.column_name = 'duration' limit 1
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</select>
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<select id="selectOne" resultType="com.whyc.pojo.License">
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select * from web_site.tb_license limit 1
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</select>
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</mapper>
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