Question

CREATE PROCEDURE SortModules
@flag int
AS 
BEGIN
    CASE @flag  
        WHEN  0 THEN SELECT FriendlyName,ModuleID FROM [dbo].[Modules] order by FriendlyName asc
        WHEN  1 THEN SELECT FriendlyName,ModuleID FROM [dbo].[Modules] order by FriendlyName desc
    END
END<

在上述程序中我收到了错误
。Incorrect syntax near the keyword 'CASE'.
Incorrect syntax near the keyword 'WHEN'.
Incorrect syntax near the keyword 'END'.。
Plz帮我找错了.Thanks

Answer 1

我建议你在这里使用IF语句而不是CASE语句。

IF @flag = 0 
BEGIN
    SELECT FriendlyName,ModuleID FROM [dbo].[Modules] order by FriendlyName
END
ELSE
BEGIN
    SELECT FriendlyName,ModuleID FROM [dbo].[Modules] order by FriendlyName DESC 
END

有关CASE的更多信息。

Answer 2

SELECT FriendlyName,ModuleID
FROM [dbo].[Modules]
ORDER BY
    CASE WHEN @flag = 0 THEN FriendlyName END ASC,
    CASE WHEN @flag = 1 THEN FriendlyName END DESC

使用mssql2005的过程中的用例

2 个答案: