SQL Server 分組獲取第一條數據

sql server 分組獲取第一條數據

select temp.* from (
SELECT *,Row_Number() OVER(partition by carRecordId,checkType ORDER BY checkDatetime desc)  as  rank 
FROM InventoryCheck 
) temp 
where rank = 1 

其中 partition by 後爲分組依據，允許按照多字段進行分組