01 2022 档案
摘要:1. 日志文件 show user desc dba_data_files select file_name, tablespace_name, bytes from dba_data_files; select file#, name, checkpoint_change# from v$data
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posted @ 2022-01-08 13:41
丁帅帅dss
摘要:-- 增加一张表xs_1,用来存放从xs表中删除的记录 create table xs_1 as select * from xs; truncate table xs_1; create or replace trigger t1 before delete on xs for each now
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