检验用户登录的存储过程
Create PROCEDURE UserLogin
@UserID varchar(10) ,
@Password varchar(10),
@OptDescription varchar(50) output
AS
select UserID from Users where UserID = @UserID
if (@@RowCount<1)
begin ----1
set @OptDescription ='noUser'
set @UserID=0
end------1
else
begin ----2
Select UserID
FROM Users
Where (UserID = @UserID) AND (Password = @Password )
if (@@RowCount<1)
begin -----3
set @OptDescription ='UserError'
set @UserID=0
end-------3
else
begin -----4
set @OptDescription='access'
end ------4
end------2
RETURN
GO
@UserID varchar(10) ,
@Password varchar(10),
@OptDescription varchar(50) output
AS
select UserID from Users where UserID = @UserID
if (@@RowCount<1)
begin ----1
set @OptDescription ='noUser'
set @UserID=0
end------1
else
begin ----2
Select UserID
FROM Users
Where (UserID = @UserID) AND (Password = @Password )
if (@@RowCount<1)
begin -----3
set @OptDescription ='UserError'
set @UserID=0
end-------3
else
begin -----4
set @OptDescription='access'
end ------4
end------2
RETURN
GO
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