對R_CODE、USER_CODE兩個字段進行選擇,或者多個字段。去除表中重復數據
delete from USERS_02 a where a.rowid! = (
? ? select max(b.rowid) from USERS_02? b
? ? where a.R_CODE =b.R_CODE and a.USER_CODE = b.USER_CODE
對R_CODE、USER_CODE兩個字段進行選擇,或者多個字段。去除表中重復數據
delete from USERS_02 a where a.rowid! = (
? ? select max(b.rowid) from USERS_02? b
? ? where a.R_CODE =b.R_CODE and a.USER_CODE = b.USER_CODE