ORA-00054、ORA-08002
https://docs.oracle.com/cd/B10501_01/server.920/a96525/e7500.htm
ORA-00054
resource busy and acquire with NOWAIT specified
1.查询
SELECT OBJECT_NAME AS 对象名称, S.SID, S.SERIAL#, P.SPID AS 系统进程号 FROM V$LOCKED_OBJECT L, DBA_OBJECTS O, V$SESSION S, V$PROCESS P WHERE L.OBJECT_ID = O.OBJECT_ID AND L.SESSION_ID = S.SID AND S.PADDR = P.ADDR;
2.kill
alter system kill session 'SID,SERIAL#'
ORA-08002
ORA-08002 sequence string.CURRVAL is not yet defined in this session
Cause: Sequence CURRVAL has been selected before sequence NEXTVAL.
Action: Select NEXTVAL from the sequence before selecting CURRVAL.