一.配置EM dbconsole db [oracle@rusky ~]$ lsnrctl start [oracle@rusky ~]$ emctl start dbconsoleTZ set to US/PacificEM Configuration issue. /home/oracle/product/10.2.0/db_1/rusky.com_orcl not found. [oracle@rusky ~]$ emca -config dbcontrol db STARTED EMCA
Oracle 批量修改字段长度 SELECT 'alter table '||a.table_name||' MODIFY '||A.COLUMN_NAME||' VARCHAR2(100);' , A.table_name,A.COLUMN_NAME,A.DATA_TYPE,A.DATA_LENGTH,A.* from user_tab_columns A WHERE A.COLUMN_NAME='CREATE_USER' AND a.DATA_LENGTH<=20:
Oracle参数修改小结Oracle中有些参数是可以在session级别修改,有些则必须在system级别修改,有些参数不需要重启就能马上生效,有些参数必须重启才能生效,那么如何知道这些信息呢?可以从v$parameter视图中得出,重点关注这个视图的以下几列:ISSES_MODIFIABLE VARCHAR2(5) Indicates whether the parameter can be changed withALTER SESSION(TRUE) or not (FALSE)ISSYS
1.停止dbconsole $ emctl stop dbconsole 查看状态,确认dbconsole已经停止 $ emctl status dbconsole 2.修改sysman用户和dbsnmp用户的密码 $ sqlplus / as sysdba SQL> alter user sysman identified by xxx; SQL> alter user dbsnmp identified by yyy; 解锁用户 SQL> alter user sysman ac