删除数据库中所有表中指定的字段

SELECT
obj.name
FROM SysObjects obj
LEFT JOIN syscolumns col ON col.id = obj.id
WHERE obj.XType='U' AND col.name = 'CreateId'
ORDER BY obj.Name

--定义变量
DECLARE @strSql NVARCHAR(4000);
DECLARE @strWhere NVARCHAR(1000);
DECLARE @TableName NVARCHAR(100);
DECLARE @strDelete  NVARCHAR(100);
SET @strWhere = ' Where createid = ''170010000'' '
SET @strDelete = 'DELETE FROM '

--定义游标
DECLARE contact_cursor CURSOR FOR
--检索当前数据库中所有的用户表
SELECT Name AS TableName FROM SysObjects Where XType='U' ORDER BY Name
--打开游标
OPEN contact_cursor

FETCH NEXT FROM contact_cursor
INTO @TableName

WHILE @@FETCH_STATUS = 0
BEGIN
--拼接SQL
SET @strSql = @strDelete + @TableName + @strWhere;
PRINT @strSql
--EXECUTE sp_executesql  @strSql
FETCH NEXT FROM contact_cursor
INTO @TableName
END

--关闭释放游标
CLOSE contact_cursor
DEALLOCATE contact_cursor