报需要升级的错误,具体处理步骤如下: 一.错误信息 SQL> alter database open ;alter database open resetlogs*ERROR at line 1:ORA-01092: ORACLE instance terminated. Disconnection forcedORA-00704: bootstrap process failureORA-39700: database must be opened with UPGRADE optionPro…
行链接消除方法创建大的block块------------------ 参考tom kyte的例子----------------------------------------------创建4k blocksize的表空间SQL> alter system set db_4k_cache_size=1m scope=both; System altered.SQL> create tablespace tbs1 datafile '/u01/app/oracle/oradata/test/…
Oracle 查询出来的数据取第一条 --------------------------------------------------------------------------- 转载自:http://www.itpub.net/thread-246442-1-1.html select * from (select * from <table> order by <key>) where rownum=1; select * from (select * from &l…