比如有以下數據:
需要根據code name刪除相同數據,
delete from BB t
where t.rowid not in
(select max(rowid) from BB t1 group by t1.code,t1.name);
執行完再查詢就只剩唯一一條了
比如有以下數據:
需要根據code name刪除相同數據,
delete from BB t
where t.rowid not in
(select max(rowid) from BB t1 group by t1.code,t1.name);
執行完再查詢就只剩唯一一條了