[ DB ] [ SQL ] [ SQL Server ] MS SQL 建立暫存表格 temp table - 轉載

範例 SQL:

 IF OBJECT_ID(N'tempdb.dbo.#tmp_checkStatusCount', N'U') IS NOT NULL
 DROP TABLE #tmp_checkStatusCount
 SELECT
   CONVERT(varchar(100), s.UpdateTime, 112) as updateTime,
   e.checkStatus,
   count(*) as amount
 into tempdb.dbo.#tmp_checkStatusCount
 FROM Errorcode as e WITH(NOLOCK)
 LEFT JOIN statusTable as s WITH(NOLOCK)
 on e.checkStatus = s.checkStatus
 where countryCode ='USA'
 and   CONVERT(varchar(100), s.UpdateTime, 112) = ''
 GROUP BY CONVERT(varchar(100), s.UpdateTime, 112), e.checkStatus
 ORDER BY CONVERT(varchar(100), s.UpdateTime, 112), e.checkStatus asc

重點:

create table 在 tempdb 中

#table 僅此連線可以使用

##table 其他連線可查詢此TABLE

原文連結

1.

http://deanma.blogspot.tw/2012/01/ms-sql-temp-table.html

2.

https://social.msdn.microsoft.com/Forums/zh-TW/850f5bf2-79b5-4f32-ba40-0bba2db1e929/temptabledeclare-temptable?forum=240