使用Union时如何声明

问题描述

这是我要Union的语句:

this are the statements that i want to Union:

Create PROCEDURE[dbo].[spUnion3]
(
@RigionID int)
AS SELECT     Schools.SchoolName
FROM         SchoolDistrict, Schools
WHERE     SchoolDistrict.SchoolDistrictID = Schools.DistrictID AND SchoolDistrict.RegionID = @RegionID

UNION

SELECT     ECD.ECDName
FROM         SchoolDistrict, ECD
WHERE     SchoolDistrict.SchoolDistrictID = ECD.DistrictID AND SchoolDistrict.RegionID = @RegionID

但这给了我这个错误信息:

But it gives me this error massage:

"Must declare the scalar variable "@RegionID".".

请帮助.

尝试作为storedprosedure这样做，它给了我同样的错误，但是在第二个区域中，参数

Please help.

tried to doing it as storedprosedure it gives me the same error but on the 2nd Region Parameter

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