我正在使用pgadminIII（postgreSQL）
我有以下表格：Book，Publisher，OrderLine，ShopOrder。
使用以下SQL：
SELECT
Book.BookID AS "Book ID"
,Book.Title AS "Book title"
,SUM(OrderLine.quantity) AS "Number Ordered"
,ShopOrder.OrderDate AS "Order Date"
FROM (((Book
INNER JOIN OrderLine
ON Book.BookID = OrderLine.BookID)
INNER JOIN Publisher
ON Book.PublisherID = Publisher.PublisherID )
INNER JOIN ShopOrder
ON OrderLine.ShopOrderID = ShopOrder.ShopOrderID)
GROUP BY ShopOrder.OrderDate, Name, Book.BookID
.
我想将此与（WHERE Publisher.Name = "Smith Smitheson"）一起使用
我不知道放在哪里，或者如果我做得对，请帮忙吗？
...
INNER JOIN Publisher ON Book.PublisherID = Publisher.PublisherID AND Publisher.Name = 'Smith Smitheson' )
...
或者
SELECT Book.BookID AS "Book ID" ,Book.Title AS "Book title"
,SUM(OrderLine.quantity) AS "Number Ordered" ,ShopOrder.OrderDate AS
"Order Date" FROM Book
INNER JOIN OrderLine ON Book.BookID = OrderLine.BookID
INNER JOIN Publisher ON Book.PublisherID = Publisher.PublisherID
INNER JOIN ShopOrder ON OrderLine.ShopOrderID = ShopOrder.ShopOrderID
WHERE Publisher.Name = 'Smith Smitheson'
GROUP BY ShopOrder.OrderDate, Name, Book.BookID
本文收集自互联网，转载请注明来源。
如有侵权，请联系[email protected] 删除。
我来说两句