select max(cdate) as max_date from ( select t1.date1 as cdate from table t1 unio...
select max(cdate) as max_date from ( select t1.date1 as cdate from table t1 unio...
有很多做法...我比較會用的是... 例如: TableA --> ColumnA --> 型別DATETIME TableB --> Col...
有很多做法...我比較會用的是... 例如: TableA --> ColumnA --> 型別DATETIME TableB --> Col...