Mysql 对所有表执行查询，并在新表中填写数据

我需要得到带有这些字段的结果表 -表名称、最小日期、最大日期

这是我的查询，我应该为所有表执行

SELECT MIN(short_date) as FirstDuplicatedDate, MAX(short_date) as LastDuplicatedDate
FROM (SELECT  short_date, type, value,  count(*) as cnt
FROM testTable
GROUP BY  short_date
HAVING COUNT(*) > 1) as Duplicates

然后我发现了如何获取所有表名 我是这样做的

SELECT TABLE_NAME as name FROM `information_schema`.`TABLES`
WHERE `TABLES`.`TABLE_SCHEMA` = 'test'
AND `TABLES`.`TABLE_NAME` LIKE 'test%'

DECLARE @DB_Name varchar(50)
DECLARE @Command varchar(100);
DECLARE database_cursor CURSOR FOR 
SELECT name 
FROM (SELECT TABLE_NAME as name FROM `information_schema`.`TABLES`
WHERE `TABLES`.`TABLE_SCHEMA` = 'test'
AND `TABLES`.`TABLE_NAME` LIKE 'test%') as TableNames

OPEN database_cursor

FETCH NEXT FROM database_cursor INTO @DB_Name

WHILE @@FETCH_STATUS = 0 
BEGIN 
     SELECT @Command = 'SELECT MIN(short_date) as FirstDuplicatedDate, MAX(short_date) as LastDuplicatedDate
FROM (SELECT  short_date, type, value,  count(*) as cnt
FROM ' + @DB_Name + '
WHERE type = ''test''
GROUP BY  short_date, type, value
HAVING COUNT(*) > 1) as Duplicates'
     EXEC sp_executesql @Command

     FETCH NEXT FROM database_cursor INTO @DB_Name 
END

CLOSE database_cursor 
DEALLOCATE database_cursor

但我不知道如何对所有表执行它，并将结果填入新表中

我试着这样做

SELECT TABLE_NAME as name FROM `information_schema`.`TABLES`
WHERE `TABLES`.`TABLE_SCHEMA` = 'test'
AND `TABLES`.`TABLE_NAME` LIKE 'test%'

DECLARE @DB_Name varchar(50)
DECLARE @Command varchar(100);
DECLARE database_cursor CURSOR FOR 
SELECT name 
FROM (SELECT TABLE_NAME as name FROM `information_schema`.`TABLES`
WHERE `TABLES`.`TABLE_SCHEMA` = 'test'
AND `TABLES`.`TABLE_NAME` LIKE 'test%') as TableNames

OPEN database_cursor

FETCH NEXT FROM database_cursor INTO @DB_Name

WHILE @@FETCH_STATUS = 0 
BEGIN 
     SELECT @Command = 'SELECT MIN(short_date) as FirstDuplicatedDate, MAX(short_date) as LastDuplicatedDate
FROM (SELECT  short_date, type, value,  count(*) as cnt
FROM ' + @DB_Name + '
WHERE type = ''test''
GROUP BY  short_date, type, value
HAVING COUNT(*) > 1) as Duplicates'
     EXEC sp_executesql @Command

     FETCH NEXT FROM database_cursor INTO @DB_Name 
END

CLOSE database_cursor 
DEALLOCATE database_cursor

但我犯了这个错误

语法错误或访问冲突：1064您的SQL中有错误 句法；检查与MySQL服务器版本对应的手册 对于要使用near'DECLARE@DB_Name varchar（50）DECLARE的正确语法 @第1行的命令varchar（100）'

UPD

CREATE PROCEDURE GetData()
BEGIN

DECLARE @DB_Name varchar(50), @Command varchar(100);
DECLARE database_cursor CURSOR FOR 
SELECT name 
FROM (SELECT TABLE_NAME as name FROM `information_schema`.`TABLES`
WHERE `TABLES`.`TABLE_SCHEMA` = 'test'
AND `TABLES`.`TABLE_NAME` LIKE 'test%_') as TableNames

OPEN database_cursor

FETCH NEXT FROM database_cursor INTO @DB_Name

WHILE @@FETCH_STATUS = 0 
BEGIN 
     SELECT @Command = 'SELECT MIN(short_date) as FirstDuplicatedDate, MAX(short_date) as LastDuplicatedDate
FROM (SELECT  short_date, type, value,  count(*) as cnt
FROM ' + @DB_Name + '
WHERE type = ''test''
GROUP BY  short_date, type, value
HAVING COUNT(*) > 1) as Duplicates'
     EXEC sp_executesql @Command

     FETCH NEXT FROM database_cursor INTO @DB_Name 
END;

CLOSE database_cursor 
DEALLOCATE database_cursor

END;

CALL GetData()

---

在开始处添加分隔符$$；添加

分隔符在
结束后

摆脱声明命令。而是使用不需要声明的
@命令

添加
SELECT@command在
选择@命令之后：=以便我们可以进行一些调试

关闭
和
解除分配
语句需要
以终止它们

测试要提取的行数是否不足

您确实需要看一些存储过程的示例，特别是那些带有游标的存储过程

更新

啊，我甚至没有发现一半的语法错误。这可能有用（我不知道，因为我没有您特定的表或列）：

据我所知，这个错误是由于，
DELIMETER
和另外一件事，您必须正确地应用游标来迭代整个
行集
。在下面的代码中，我用
游标
写下了
过程
。进行动态查询并使用

PREPARE stmt FROM @VAR_QRY; EXECUTE stmt;

动态查询将返回您想要的确切输出。这里我假设您对
触发器
、
循环
和
光标

试试下面的代码。
希望这会有所帮助

DROP PROCEDURE IF EXISTS ITERATEALLTABLE;
DELIMITER $$
CREATE PROCEDURE ITERATEALLTABLE()
BEGIN
DECLARE VAR_TABLE varchar(100);
DECLARE VAR_QRY varchar(100);
DECLARE VAR_FINISHED INT(11) DEFAULT 0;
DECLARE DATABASE_CURSOR CURSOR FOR 
                SELECT name AS TableNames
                FROM (
                    SELECT TABLE_NAME as name FROM `information_schema`.`TABLES`
                    WHERE `TABLES`.`TABLE_SCHEMA` = 'test'
                    AND `TABLES`.`TABLE_NAME` LIKE 'test%'
                )Z ;


                DECLARE CONTINUE HANDLER FOR NOT FOUND SET VAR_FINISHED = 1;

                OPEN DATABASE_CURSOR;
                GET_NEXTRECORD: LOOP

                        FETCH DATABASE_CURSOR INTO VAR_TABLE;

                            IF VAR_FINISHED = 1 THEN 
                            LEAVE GET_NEXTRECORD;
                            END IF;

                            SET @VAR_QRY = CONCAT("SELECT MIN(short_date) as FirstDuplicatedDate, MAX(short_date) as LastDuplicatedDate
                            FROM (SELECT  short_date, type, value,  count(*) as cnt
                            FROM " , VAR_TABLE , " WHERE type = 'test'
                            GROUP BY  short_date, type, value
                            HAVING COUNT(*) > 1) as Duplicates");

                            PREPARE stmt FROM @VAR_QRY;
                            EXECUTE stmt;

                END LOOP GET_NEXTRECORD;

                CLOSE DATABASE_CURSOR;

END;

CALL ITERATEALLTABLE;

对。。。你可能想试试这个

删除此行，然后再次运行查询

DECLARE @DB_Name varchar(50), @Command varchar(100);

我认为在mysql中，您可以只使用变量而不声明它，然后在必要时强制转换。
您已经标记了sql server和mysql。由于错误消息引用了mysql，SQLServerOne肯定是错误的。请把它取下来。谢谢。我还应该说删除t-sql，因为这是sql Server（而不是MySQL）上使用的sql的风格。你能举一个例子说明你试图做什么exactlySQLSTATE[42000]：语法错误或访问冲突：1064你的sql语法有错误；查看与您的MySQL服务器版本对应的手册，以了解使用“DELIMITER$$什么版本的MySQL”附近的正确语法？在
分隔符
和
$$
之间是否有空格？您使用哪个客户端将其发送到MySQL服务器？（我使用的是mysql命令行工具。）在
删除
之前是否有另一个
分隔符
语句？以及我之前评论中的问题？再次尝试应用我的代码——这次添加
立即选择（）分隔符$$
之前的code>。
声明中的
VAR\u QRY
与
@VAR\u QRY
完全不同。