SQL查询已成功完成但未获得结果

Question

使用SQL Server Management Studio 2017.我导入了大约2000万封电子邮件的列表,只需运行以下代码即可删除任何重复项:

WITH CTE AS
(
    SELECT *,ROW_NUMBER() OVER (PARTITION BY email ORDER BY email) AS RN
    FROM dbo.cleanemails
)

DELETE FROM CTE WHERE RN<>1

它表示Query已成功执行,并在Messages选项卡下显示受影响的1000万行(预期),但没有结果选项卡.我想导出到csv文件.我检查执行设置,因为Parseonly和Noexec设置有时会导致问题,但它们都是OFF.

我是相对较新的SQL,任何帮助将不胜感激.工作室屏幕截图 执行设置

Answer 1

如果要查看已删除的记录,则可以使用OUTPUT子句

;WITH CTE
     AS (SELECT *,
                Row_number()OVER (PARTITION BY email
                    ORDER BY email) AS RN
         FROM   dbo.cleanemails)
DELETE FROM CTE
output deleted.*
WHERE  RN <> 1