3
我想写一个接受两个输入(内容ID和内容类型)的SQL查询,根据用户设置的内容从不同的源表填充临时表作为内容类型,然后最后对临时表运行查询。我想我会陷入将我的临时表合并到我的IF/ELSE语句中。使用IF/ELSE并插入临时表
所以我的问题是,为什么这回几个非零数字结果:
DECLARE @contentID int, @contenttype varchar
SET @contentid = 28861
SET @contenttype = 'resource'
DECLARE @tags_current TABLE (contentID int, taxonomyID int, isPrimary int)
INSERT INTO @tags_current (contentID, taxonomyID, isPrimary)
SELECT resourceID as contentID, taxonomyID, isPrimary
FROM resource2taxonomy r2t
WHERE r2t.resourceID = @contentID
SELECT * FROM @tags_current
而这将返回结果为零:
DECLARE @contentID int, @contenttype varchar
SET @contentid = 28861
SET @contenttype = 'resource'
DECLARE @tags_current TABLE (contentID int, taxonomyID int, isPrimary int)
IF (@contenttype = 'resource')
BEGIN
INSERT INTO @tags_current (contentID, taxonomyID, isPrimary)
SELECT resourceID as contentID, taxonomyID, isPrimary
FROM resource2taxonomy r2t
WHERE r2t.resourceID = @contentID
END
SELECT * FROM @tags_current
而且,我已经试过这一点,它也返回零个结果:
DECLARE @contentID int, @contenttype varchar, @command varchar
SET @contentid = 28861
SET @contenttype = 'resource'
DECLARE @tags_current TABLE (contentID int, taxonomyID int, isPrimary int)
IF (@contenttype = 'resource')
BEGIN
SET @command = 'INTO @tags_current (contentID, taxonomyID, isPrimary) SELECT resourceID as contentID, taxonomyID, isPrimary FROM resource2taxonomy r2t WHERE r2t.resourceID = @contentID'
END
EXECUTE(@command)
SELECT * FROM @tags_current
我对this读了,this和this,但由于某种原因,它只是不为我点击。我使用MS SQL Server 2014,以防万一。这是SQL Fiddle。谢谢!
谢谢你 - 这就是答案。对于我来说,接受它作为答案还为时过早(不能在10分钟内接受答案),但我会回来做这件事。 – Scott