摘要:
1、按年 2、按月 3、按季 4、按周 5、按小时 6、按分钟 SELECT trunc(sysdate-1) + (ROWNUM - 1) / 24 / 60 AS STAT_TIME FROM DUAL d CONNECT BY ROWNUM <= 1440 +(trunc(sysdate, ' 阅读全文
摘要:
oracle查看表名select table_name from user_tables;select table_name from dba_tables;select * from all_all_tablesoracle查看数据库名select * from v$database;mysql查... 阅读全文