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1.1 ÉèÖÃÖ÷¿âµÄforce loggingģʽ
SQL> alter database force logging;
Database altered.
1.2 ´´½¨Ö÷¿âÃÜÂëÎļþ
$ orapwd file=orapw$ORACLE_SID password=thunis entries=4
1.3 ÅäÖÃÖ÷¿âstandby redo log£¬²¢ÑéÖ¤½á¹û
SQL> alter database add standby logfile group 4('/u01/app/oradata/guar ......

OracleÈçºÎ¸Ä±älistenerµÄ¶Ë¿ÚºÅ (Linux)

ÔÚLinuxÉÏ°²×°oracleµÄʱºò²»Ð¡ÐÄ°²×°ÁËÁ½´Îlistener, ¸ãµÃlistenerµÄ¶Ë¿ÚºÅ±ä³ÉÁË1522¶ø²»ÊÇȱʡµÄ1521, ¿Í»§¶ËÁ¬Á˺þö¼Ã»ÓÐÁ¬½ÓÉÏ£¬×îºó²Å·¢ÏÖÊÇlistenerµÄ¶Ë¿ÚºÅ²»¶Ô¡£Ò»ÏÂÊÇÎҸıälistener¶Ë¿ÚºÅµÄ²½Ö裺
1. Ê×ÏÈÐèҪֹͣlistener, ʹÓÃÃüÁîlsnrctl stop
2. listenerÍ£Ö¹ÒԺ󣬵½ÄãµÄ$ORACLE_HOME/network/adminÏÂÕ ......

OracleÖÐstart with...connect by prior×Ó¾äÓ÷¨

connect by Êǽṹ»¯²éѯÖÐÓõ½µÄ£¬Æä»ù±¾Óï·¨ÊÇ£º
select ... from tablename start with Ìõ¼þ1
connect by Ìõ¼þ2
where Ìõ¼þ3;
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select * from table
start with org_id = 'HBHqfWGWPy'
connect by prior org_id = parent_id;
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ORACLE µÈ´ýʼþ ¡¶ÉîÈëdz³öORACLEµÚ°ËÕ¡·

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