em check(转)
1、登录地址是什么?一般要输入http://ip地址:1158/em/oracle/product/10.2.0/install/portlist.ini 查询端口2、em服务是否启动,通过emctl status dbconsole查一下,如没启动执行emctl start dbconsole,然后注意...
ORACLE 一致读(Consistent Read)的步骤(转)
1. Read the Data Block. 2. Read the Row Header. 3. Check the Lock Byte to determine whether there's an ITL entry. 4. Read the ITL entry to determine the Transaction ID (Xid). 5. Read the Transaction ...