在SQL Server 2016中，必须声明标量变量“ @AccessLevel”？
我需要编写一个这样的存储过程：我通过表中的值，编写这个存储过程，首先我需要检查数据Access和RoleId存在于数据库中; 如果没有，需要将其插入表中。
我写了这个：
ALTER PROCEDURE [dbo].[InsertAndUpdateAccessLevel]
(@AccessLevel AS AccessLevel READONLY)
AS
BEGIN
DECLARE @AC AccessLevel;
SET @AC = @AccessLevel;
IF NOT EXISTS (SELECT Id
FROM RoleAccess
WHERE RoleAccess.RoleId = @AC.RoleId
AND RoleAccess.Access = @AC.Access)
INSERT INTO RoleAccess (RoleId, Access, IsDelete)
SELECT * FROM @AccessLevel
END
得到这些问题： Msg 137, Level 16, State 1, Procedure InsertAndUpdateAccessLevel, Line 8 [Batch Start Line 7] Must declare the scalar variable "@AccessLevel".
Msg 137, Level 16, State 1, Procedure InsertAndUpdateAccessLevel, Line 8 [Batch Start Line 7] Must declare the scalar variable "@AC".
Msg 137, Level 16, State 1, Procedure InsertAndUpdateAccessLevel, Line 15 [Batch Start Line 7] Must declare the scalar variable "@AC".
Msg 137, Level 16, State 1, Procedure InsertAndUpdateAccessLevel, Line 16 [Batch Start Line 7] Must declare the scalar variable "@AC".
我该如何解决？
写回答
-
请尝试以下更改：
ALTER PROCEDURE [dbo].[InsertAndUpdateAccessLevel] ( @AccessLevel AccessLevel READONLY ) AS BEGIN IF NOT EXISTS ( SELECT Id FROM RoleAccess WHERE exists (select 1 from @AccessLevel as x where RoleAccess.RoleId=x.RoleId AND RoleAccess.Access=x.Access) ) INSERT INTO RoleAccess (RoleId, Access, IsDelete ) SELECT * FROM @AccessLevel END2019-11-29 21:49:10赞同 展开评论 打赏
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