greenplum最终的方法是: delete from test where (gp_segment_id, ctid) not in (select gp_segment_id, min(ctid) from test group by x, gp_segment_id); postgresql : delete from t_zhzx_aj where ctid not in (select min(ctid) from db_zxaj.t_zhzx_aj group by ahd…
错误状态: SQL> startup ORA-01261: Parameter db_recovery_file_dest destination string cannot be translated ORA-01262: Stat failed on a file destination directory Linux Error: 2: No such file or directory SQL> show parameter db_recovery_file_dest ORA-0103…