radish的专栏

这个很少用过，用了之后感觉很好，记录下select * from (select /*+ parallel(t,8) */ t.*,row_number() over (partition by a,b,c order by a DESC) rn from table_a t 

ORACLE 10.2G 官方文档中对 新增加的PL/SQL PACKAGE  DBMS_CHANGE_NOTIFICATION  描述如下：The DBMS_CHANGE_NOTIFICATION package provides PL/SQL based registration interfaces. A client can use this interface to create r

DBMS_CHANGE_NOTIFICATION对象（表）数据更新通知DBMS_APPLICATION_INFO设置/读取SESSION APPLICATION信息，操作V$SESSION_LONGOPSDBMS_ALERT告警DBMS_DATAPUMP数据迁移DBMS_DB_VERSION数据库版本定义