SQL SubQuery
2009/06/10
這篇不是教學文,是因為我太少寫SQL and T-SQL
常常忘記sub Query的下法特地上來memo一下
不要笑我,我不是學SQL出身的只是略懂..^^
SELECT * FROM CAM_CATALOG_CATEGORY as T1
WHERE T1.CATEGORY_ID IN
(
SELECT CATEGORY_ID FROM CAM_CATALOG_CATEGORY_RELATION as T2
WHERE T2.CATEGORY_ID=T1.CATEGORY_ID
) AND IMAGE_ID <> ''
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