将查询从Oracle迁移到SQL Server

Question

我为Oracle编写了以下查询

SELECT  max(POS) keep (dense_rank last order by LASTDATE)       as POSITION
FROM TEST

如何将其修改为sql server？

Answer 1

如所写，您的查询实际上是在获取最新LASTDATE的POS。 您可以这样在TSQL中重写它：

SELECT TOP 1 POS
FROM TEST
ORDER BY LASTDATE DESC