Oracle 11g中的errorlogging參數增強了錯誤資訊的記錄功能,可以做到錯誤資訊“落地”的功能。
1.Oracle版本資訊
sys@11gR2> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
2.SQL*Plus中errorlogging參數的預設值
sec@11gR2> show errorlogging
errorlogging is OFF
3.修改errorlogging選項為ON開啟錯誤日志記錄功能
sec@11gR2> set errorlogging on
errorlogging is ON TABLE SEC.SPERRORLOG
注意再次提示的内容,“set errorlogging on”指令将自動在目前使用者下建立表SPERRORLOG,用于記錄錯誤資訊。
sec@11gR2> desc SPERRORLOG
Name Null? Type
------------- -------- -------------------
USERNAME VARCHAR2(256)
TIMESTAMP TIMESTAMP(6)
SCRIPT VARCHAR2(1024)
IDENTIFIER VARCHAR2(256)
MESSAGE CLOB
STATEMENT CLOB
每個字段的定義描述如下:
USERNAME -- 使用者名
TIMESTAMP -- 錯誤發生的時間
SCRIPT -- 腳本名稱
IDENTIFIER-- 辨別符
MESSAGE -- 記錄類似ORA、PLA或SP2錯誤資訊
STATEMENT -- 錯誤資訊描述
4.模拟SQL*Plus中的錯誤
sec@11gR2> show secooler
SP2-0158: unknown SHOW option "secooler"
sec@11gR2> help secooler
SP2-0172: No HELP matching this topic was found.
sec@11gR2> seeeeelect from tab;
SP2-0734: unknown command beginning "seeeeelect..." - rest of line ignored.
sec@11gR2> create table t as as select * from user_objects;
create table t as as select * from user_objects
*
ERROR at line 1:
ORA-00928: missing SELECT keyword
sec@11gR2>
5.通過查詢SPERRORLOG表獲得所有錯誤資訊
sec@11gR2> col USERNAME for a8
sec@11gR2> col TIMESTAMP for a14
sec@11gR2> col MESSAGE for a20
sec@11gR2> col STATEMENT for a20
sec@11gR2> select USERNAME,TIMESTAMP,MESSAGE,STATEMENT from SPERRORLOG;
USERNAME TIMESTAMP MESSAGE STATEMENT
-------- -------------- -------------------- --------------------
SEC 06-MAY-10 03.5 SP2-0158: unknown SH show secooler
1.49.000000 PM OW option "secooler"
SEC 06-MAY-10 03.5 SP2-0172: No HELP ma help secooler
1.51.000000 PM tching this topic wa
s found.
SEC 06-MAY-10 03.5 SP2-0734: unknown co seeeeelect from tab;
1.54.000000 PM mmand beginning "see
eeelect..." - rest o
f line ignored.
SEC 06-MAY-10 03.5 ORA-00928: missing S create table t as as
1.55.000000 PM ELECT keyword select * from user_
objects
可見,曾經發生的錯誤資訊一覽無餘。
6.使用commit指令可以永久記錄這些報錯資訊
若想将報錯資訊永久的保留下來,隻需要在session中輸入commit指令便可。
7.Oracle 11gR2官方文檔中參考資訊
http://download.oracle.com/docs/cd/B28359_01/server.111/b31189/ch12040.htm#SQPUG160
8.小結
通過參數errorlogging的設定,可以非常便捷的開啟錯誤資訊記錄功能。當在SQL*Plus中調試腳本或SQL語句時,該功能起到非常重要的作用。
另外,通過這個錯誤記錄功能,也可以建立一個誤操作自檢庫,以便自省吾身。
Good luck.
secooler
10.05.06
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