数据库版本更新
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package com.glxp.sale.admin.config;
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import cn.hutool.core.io.IORuntimeException;
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import cn.hutool.core.io.IoUtil;
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import cn.hutool.core.lang.UUID;
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import com.glxp.sale.admin.dao.param.DbVersionDao;
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import com.glxp.sale.admin.entity.param.DbVersionEntity;
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import com.glxp.sale.admin.entity.param.SchemaData;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.boot.ApplicationArguments;
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import org.springframework.boot.ApplicationRunner;
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import org.springframework.core.annotation.Order;
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import org.springframework.stereotype.Component;
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import javax.annotation.Resource;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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@Order(1)
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@Component
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@Slf4j
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public class HdSchemaExecutor implements ApplicationRunner {
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@Resource
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DbVersionDao hdCommonDao;
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private List<SchemaData> schema = new ArrayList<>();
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@Override
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public void run(ApplicationArguments args) throws Exception {
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//初始版本列表
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buildSchemas();
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//定义sql文件路径
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String basePath = "schemas/";
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//非版本控制，初始化脚本
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ClassLoader loader = this.getClass().getClassLoader();
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//通过流的方式获取项目路径下的文件
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InputStream inputStream = loader.getResourceAsStream(basePath + "init.sql");
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//获取文件内容
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String sql = IoUtil.readUtf8(inputStream);
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try {
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//判断版本表是否存在
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int count = hdCommonDao.selectTableExist("hd_version");
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if (count == 0) {
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hdCommonDao.updateSql(sql);
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}
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for (SchemaData schemaData : schema) {
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//查询版本记录是否存在
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count = hdCommonDao.selectVersion(schemaData.getVersion());
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if (count == 0) {
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log.info("--------------执行数据脚本，版本：" + schemaData.getVersion());
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//获取对应sql脚本
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inputStream = loader.getResourceAsStream(basePath + schemaData.getFileName());
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sql = IoUtil.readUtf8(inputStream);
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hdCommonDao.updateSql(sql);
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DbVersionEntity entity = new DbVersionEntity();
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entity.setId(UUID.randomUUID().toString());
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entity.setVersion(schemaData.getVersion());
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entity.setCreated(new Date());
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entity.setRemark(schemaData.getFileName());
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//写入版本记录
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hdCommonDao.insertVersion(entity);
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}
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}
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} catch (IORuntimeException e) {
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e.printStackTrace();
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} finally {
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//关闭流
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inputStream.close();
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}
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}
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public void buildSchemas() {
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// schema.add(new SchemaData("v2.1", "schema_v2.1.sql"));
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// schema.add(new SchemaData("v2.2", "schema_v2.2.sql"));
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// schema.add(new SchemaData("v2.3", "schema_v2.3.sql"));
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}
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}
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package com.glxp.sale.admin.dao.param;
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import com.glxp.sale.admin.entity.param.DbVersionEntity;
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import org.apache.ibatis.annotations.Mapper;
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import org.apache.ibatis.annotations.Param;
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import org.apache.ibatis.annotations.Update;
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@Mapper
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public interface DbVersionDao {
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int selectVersion(@Param("version") String version);
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//查询版本表是否存在
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int selectTableExist(@Param("tableName") String tableName);
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//新增版本
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int insertVersion(DbVersionEntity entity);
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//执行sql
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@Update("${sql}")
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void updateSql(@Param("sql") String sql);
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}
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package com.glxp.sale.admin.entity.param;
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import lombok.Data;
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import java.util.Date;
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@Data
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public class DbVersionEntity {
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private String id;
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private String version;
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private String remark;
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private Date created;
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}
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@ -0,0 +1,22 @@
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package com.glxp.sale.admin.entity.param;
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import lombok.Data;
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@Data
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public class SchemaData {
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/**
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* 版本号
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*/
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public String version;
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/**
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* 文件名
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*/
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public String fileName;
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public SchemaData(String version, String fileName) {
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this.version = version;
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this.fileName = fileName;
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}
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}
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@ -0,0 +1,26 @@
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<?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.glxp.sale.admin.dao.param.DbVersionDao">
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<select id="selectVersion" resultType="int">
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selecT count(1)
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from db_version
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where version = #{version}
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</select>
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<select id="selectTableExist" resultType="int">
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select count(*) count
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from information_schema.TABLES
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where TABLE_NAME = #{tableName} and table_schema = (select database())
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</select>
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<insert id="insertVersion">
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insert into db_version(id, version, remark, created)
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values (uuid(), #{version}, #{remark}, #{created})
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</insert>
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</mapper>
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@ -0,0 +1,109 @@
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SET NAMES utf8mb4;
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SET
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FOREIGN_KEY_CHECKS = 0;
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DROP TABLE IF EXISTS `db_version`;
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CREATE TABLE `db_version`
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(
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`id` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,
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`version` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '版本号',
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`created` datetime(0) NULL DEFAULT NULL COMMENT '创建时间',
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`remark` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '备注',
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PRIMARY KEY (`id`) USING BTREE
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) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci COMMENT = '数据版本' ROW_FORMAT = Dynamic;
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SET
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FOREIGN_KEY_CHECKS = 1;
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/* 创建函数Pro_Temp_ColumnWork操作表字段 */
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DROP PROCEDURE IF EXISTS Pro_Temp_ColumnWork;
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CREATE PROCEDURE `Pro_Temp_ColumnWork`(TableName VARCHAR ( 50 ), ColumnName VARCHAR ( 50 ), SqlStr VARCHAR ( 4000 ),
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CType INT)
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BEGIN
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DECLARE
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Rows1 INT;
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SET
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Rows1 = 0;
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SELECT COUNT(*)
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INTO Rows1
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE table_schema = DATABASE()
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AND upper(table_name) = TableName
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AND upper(column_name) = ColumnName;
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IF
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( CType = 1 AND Rows1 <= 0 ) THEN
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SET SqlStr := CONCAT( 'ALTER TABLE ', TableName, ' ADD COLUMN ', ColumnName, ' ', SqlStr );
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ELSEIF
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( CType = 2 AND Rows1 > 0 ) THEN
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SET SqlStr := CONCAT( 'ALTER TABLE ', TableName, ' MODIFY ', ColumnName, ' ', SqlStr );
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ELSEIF
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( CType = 3 AND Rows1 > 0 ) THEN
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SET SqlStr := CONCAT( 'ALTER TABLE ', TableName, ' DROP COLUMN ', ColumnName );
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ELSE
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SET SqlStr := '';
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END IF;
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IF
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( SqlStr <> '' ) THEN
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SET @SQL1 = SqlStr;
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PREPARE stmt1
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FROM
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@SQL1;
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EXECUTE stmt1;
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END IF;
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END;
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/** 函数创建结束 **/
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/*创建定义普通索引函数*/
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DROP PROCEDURE IF EXISTS Modify_index;
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CREATE PROCEDURE Modify_index(
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TableName VARCHAR ( 50 ),
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ColumnNames VARCHAR ( 500 ),
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idx_name VARCHAR ( 50 ),
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idx_type VARCHAR ( 50 ))
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BEGIN
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DECLARE
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Rows1 int;
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DECLARE
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SqlStr VARCHAR(4000);
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DECLARE
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target_database VARCHAR ( 100 );
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SELECT DATABASE
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()
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INTO target_database;
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SET
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Rows1 = 0;
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SELECT COUNT(*)
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INTO Rows1
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FROM information_schema.statistics
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WHERE table_schema = DATABASE()
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AND upper(table_name) = upper(TableName)
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AND upper(index_name) = upper(idx_name);
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IF
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Rows1<=0 THEN
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SET SqlStr := CONCAT( 'alter table ', TableName, ' ADD INDEX ', idx_name, '(', ColumnNames, ') USING ', idx_type );
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END IF;
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IF
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( SqlStr <> '' ) THEN
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SET @SQL1 = SqlStr;
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PREPARE stmt1
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FROM
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@SQL1;
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EXECUTE stmt1;
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END IF;
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END;
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/*创建定义普通索引函数结束*/
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