摘要：报错内容： e.getMessage() Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect 阅读全文

摘要：先备份后删除 --备份2019年数据 create table table_name_2019 as select * from table_name a where a.create_time between to_date('2019-01-01','yyyy-mm-dd') and to_da 阅读全文