Sequence CURRVAL is not yet defined in this session
在当前会话中调用 NEXTVAL 之前引用了序列的 CURRVAL 伪列。CURRVAL 仅在 NEXTVAL 生成值后才可用。
SELECT sequence_name, last_number, increment_by FROM dba_sequences WHERE sequence_name = 'SEQ_NAME';SELECT sequence_owner, sequence_name FROM dba_sequences WHERE sequence_owner = 'SCHEMA';