ms sql select count的相關文章
ms sql select count的相關商品
sql - MS ACCESS: How can i count distinct value using access query? - Stack Overflow
瀏覽:1444
日期:2024-08-09
try select ..., count(distinct Training.Tcode) as ..., ... EDIT - please now look at this... Take the following SQL code. The first select is how SQL server would do this and the second query should be access compliant... declare @t table (eCode int, tcod...看更多