SQL create table t1(a number);表已创建。SQL create table t_sql(username varchar2(30), 2 client_ip varchar2(20),sql_text varchar2(4000), 3 table_name varchar2(30),owner varchar2(30));表已创建。SQL create or replace trigger capt_sql 2 BEFORE DELETE OR INSERT

一、ORACLE的启动和关闭1、在单机环境下要想启动或关闭ORACLE系统必须首先切换到ORACLE用户，如下su oraclea、启动ORACLE系统oraclesvrmgrlSVRMGRconnect internalSVRMGRstartupSVRMGRquitb、关闭ORACLE系统oraclesvrmgrlSVRMGRconnect internal