1.解決此錯誤的辦法，可能有表空間，不夠擴展，并不一定是ARCHIVETEMP
ORA-1652: unable to extend temp segment by 128 in tablespace                 TEMP

ORA-1652: unable to extend temp segment by 128 in tablespace                 ARCHIVETEMP
ORA-1652: unable to extend temp segment by 128 in tablespace                 ARCHIVETEMP
[root@emd3wfdb bdump]# tail -1000 alert_wfdb.log |grep ORA
ORA-01555 caused by SQL statement below (Query Duration=21626 sec, SCN: 0x0000.19050882):
ORA-1652: unable to extend temp segment by 128 in tablespace                 ARCHIVETEMP
ORA-1652: unable to extend temp segment by 128 in tablespace                 ARCHIVETEMP

2.解決此錯誤，是大小寫的問題temp_depcode  TEMP_DEPCODE
ORA-20000: ORA-20000: Unable to analyze TABLE "HR"."TEMP_DEPCODE", insufficient privileges or does not exist

3.ln -s /u01/hremploy/arch/ ./arch  軟連接目錄

4.OPTIMIZER_INDEX_COST_ADJ  50/100  cost變化參數

3.sec_case_sensitive_logon  密碼大小寫的參數 （11G上的）

4.cursor_sharing

5.PROFILE
resource_limit 必須更改為true，否則無效
SESSIONS_PER_USER -------登陸會話的上限

6.crs使用案例
  crs_stop  -f    ora.ecsrac02.vip   
 
  crs_start      ora.ecsrac02.vip  
 
  crs_start    ora.ecsrac02.LISTENER_ECSRAC02.lsnr

7.修改參數archive_lag_target調整日誌切換時間！