Question

IF( @ActiveStatus = 1 )
BEGIN 
    @PasswordStatus = 3 
END
ELSE 
    SET @PasswordStatus = (SELECT password_status 
                             FROM tbl_user
                            WHERE login_name = @LoginName_fromApp
                              AND password=@Pass
                           )

我正在使用Microsoft SQL Server Management Studio ..

Answer 1

是

在IF子句中，您需要设置变量，因此请使用select或set，不要直接写@PasswordStatus = 3写set/select @PasswordStatus = 3

尝试

if( @ActiveStatus = 1 ) 
begin 
--chage of code 

 set @PasswordStatus = 3 --or select @PasswordStatus = 3
   END
else 
begin
Set @PasswordStatus = (select password_status from tbl_user where  login_name=@LoginName_fromApp and password=@Pass)

end

修改

评论 - @ marc_s 如果您只是设置“标量”值，请使用SET @Var = 3 - 如果您实际选择的话，请使用SELECT @Var = ID FROM dbo.Table1表（或视图）

Answer 2

当您将评估者设置为任何变量时，请使用设置，如下所示

if( @ActiveStatus = 1 )
begin
Set @PasswordStatus = 3 
END
else 
begin
Set @PasswordStatus = (select password_status from tbl_user where
login_name=@LoginName_fromApp and password=@Pass)
end
Select @PasswordStatus

Answer 3

另一个

select 
        @PasswordStatus = case when @ActiveStatus = 1 then 3 else password_status  end
from 
    tbl_user  
where  
        login_name = @LoginName_fromApp and password=@Pass

这是语法错误吗？

3 个答案: