mssql2000 批量删除空表
时间: 2024-02-06 12:01:18 浏览: 40
在 MSSQL2000 中,批量删除空表可以通过以下步骤实现。
首先,需要使用以下 SQL 查询语句找出所有的空表:
```
SELECT TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
AND OBJECTPROPERTY(OBJECT_ID(TABLE_NAME), 'IsMSShipped') = 0
AND NOT EXISTS (SELECT 1 FROM sys.columns WHERE OBJECT_ID(TABLE_NAME) = OBJECT_ID AND is_nullable = 0)
```
这个查询语句会返回所有的空表名。
接下来,可以使用以下的 SQL 语句来批量删除空表:
```
DECLARE @tableName NVARCHAR(255)
DECLARE @sql NVARCHAR(1000)
DECLARE table_cursor CURSOR
FOR
SELECT TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
AND OBJECTPROPERTY(OBJECT_ID(TABLE_NAME), 'IsMSShipped') = 0
AND NOT EXISTS (SELECT 1 FROM sys.columns WHERE OBJECT_ID(TABLE_NAME) = OBJECT_ID AND is_nullable = 0)
OPEN table_cursor;
FETCH NEXT FROM table_cursor
INTO @tableName;
WHILE @@FETCH_STATUS = 0
BEGIN
SET @sql = 'DROP TABLE ' + @tableName;
EXEC sp_executesql @sql;
FETCH NEXT FROM table_cursor
INTO @tableName;
END
CLOSE table_cursor;
DEALLOCATE table_cursor;
```
上面的 SQL 查询语句创建了一个游标,然后在循环中用动态 SQL 语句 DROP TABLE 逐个删除空表。
通过以上方法,可以批量删除 MSSQL2000 中的空表。