1
我正在試圖將m查詢返回到只返回空值的位置,而是返回所有值。我是T-SQL的新手,不確定如何搜索這個問題,所以我已經包含了我所嘗試的內容。我的下面的代碼只是返回列標題。我怎樣才能改變我的查詢,只檢索空值?僅返回空值的T-SQL完全聯接查詢
SELECT distinct o.ORDER_NUMBER, d.Drop
FROM [****\sqlexpress].FRESH.dbo.Order o
FULL OUTER JOIN
[****\sqlexpress].*****.dbo.Drop d
ON o.ORDER_NUMBER = d.OrderNumber
WHERE d.Drop = null
Order by o.ORDER_NUMBER
試試'WHERE d.Drop IS null'。 – user2989408
這樣做!謝謝! –