[转][SQL]转移数据到历史表步骤

Posted 2021-03-03 秤心

-- 迁移表
1、备份数据
SELECT * INTO {0}_{1} FROM {0}
2、清空数据
TRUNCATE TABLE {0}
3、回填数据
INSERT INTO {0} SELECT {2} FROM {0}_{1} WHERE {3}

如果表有外键，不适合采用此方法。

 查询所有表的记录数 SQL 语句：

来自：https://www.cnblogs.com/dahuzizyd/archive/2004/07/19/25565.html

SELECT \'Owner\'=CONVERT(CHAR(10),t.TABLE_SCHEMA),
      \'Table Name\'=CONVERT(CHAR(25),t.TABLE_NAME),
      \'Record Count\'=MAX(i.ROWS)
FROM SYSINDEXES i, INFORMATION_SCHEMA.TABLES t
WHERE t.TABLE_NAME = OBJECT_NAME(i.ID)
      AND t.TABLE_TYPE = \'BASE TABLE\'
GROUP BY t.TABLE_SCHEMA, t.TABLE_NAME
ORDER BY MAX(i.ROWS) DESC