存储过程问题!
大大怪老张 2004-02-14 09:47:50 存储过程问题!
小弟最近在学写存储过程,写了以下两个写法:
一:
CREATE PROCEDURE ct_createtable
@TableName varchar(20) = NULL
AS
IF EXISTS (SELECT name FROM sysobjects
WHERE name = @TableName AND type = 'u')
DROP TABLE @TableName
这种情况,在语法时就出错了。说是第6行('@TableName')语法错误
二:
CREATE PROCEDURE ct_createtable
@TableName varchar(20) = NULL
AS
DECLARE @sql varchar(2000)
SELECT @sql='DROP TABLE @TableName'
IF EXISTS (SELECT name FROM sysobjects
WHERE name = @TableName AND type = 'u')
EXECUTE (@sql)
GO
以上这种写法在执行时出错。说是第一行('@TableName')语法错误!
请大家帮帮忙!