RE: Beyond a basic Oracle EXP/IMP shell script: Error Handling & Exit Status?

From: Marquez, Chris <cmarquez_at_collegeboard.org>
Date: Thu, 18 Aug 2005 17:46:58 -0400
Message-ID: <B30C2483766F9342B6AEF108833CC84E05BD5F29@ecogenemld50.Org.Collegeboard.local>

Ron,

Thanks I appreciate the comments.
I have not looked into 'typeset' command yet (maybe if I do it will answer my next question?

I used a simple EXP shell script I have and forced the 3 possible outcomes;

     Export terminated successfully with warnings.
     Export terminated successfully without warnings.
     EXP-00000: Export terminated unsuccessfully

"Export terminated..." should produce "0" and
"Export terminated unsuccessfully" should produce "1" however " $? " is always "0" for each?

This snip shell code

exp <<EOFexp >> $log_file 2>&1 \
.......
exit
EOFexp

echo 'EXP ERROR CODE ' >> $log_file 2>&1 echo $? >> $log_file

Either "EXP-00000: Export terminated unsuccessfully" != "Export terminated unsuccessfully" or EXP is never populating " $? " correctly?

Reference;

Doc ID: 	Note:281725.1
Subject: 	Database Utilities - Export and Import Exit Codes (Errorlevel)

Chris Marquez
Oracle DBA

-----Original Message-----
From: Reidy, Ron [mailto:Ron.Reidy_at_arraybiopharma.com] Sent: Thu 8/18/2005 4:19 PM
To: Marquez, Chris; oracle-l_at_freelists.org Subject: RE: Beyond a basic Oracle EXP/IMP shell script: Error Handling & Exit Status?

Comments below ...

Ron Reidy
Lead DBA
Array BioPharma, Inc.

-----Original Message-----
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Marquez, Chris Sent: Thursday, August 18, 2005 2:14 PM
To: oracle-l_at_freelists.org
Subject: Beyond a basic Oracle EXP/IMP shell script: Error Handling & Exit Status?

All,

My skill level: I have written my share of shell scripts...mostly basic. A few "loops" and "if" statements here and there. 90% of my shell scripts have been to do things with Oracle; EXP/IMP, SQLPLUS, RMAN, etc. Mostly starting programs and handling external files. I have never written a case statement, nor used error handling (other than standard out).
My task: I have been given the task/challenge to convert or add to existing EXP/IMP scripts error handling and return codes. I found some tutorials on the web and began playing with "trap" and "Exit status" in some basic shell scripts. I fear my biggest problem is that beyond "how to" I don't know what is possible (with shell scripts & Oracle).

OK, OK, OK...my task (specifically).
1.) I need to know (or test) if my script completes successfully and assign a value.
[Reidy, Ronald] Use the 'typeset' command to declare a variable (typeset -i rc). At the end oif the exp/imp command assign the value of the return code (rc=$?). Test it from there.

2.) I need to know if/where my script dies/aborts/terminates in the middle and assigning a value....rolling variable?

"if step A complete then v_stats=...if step B complete then v_stats=..."

3.) I need to get a positive or negative return code from Oracle EXP/IMP utility and pass it to shell script (#2 above).
[Reidy, Ronald] exp/imp return positive codes only. 0 = OK, anything else indicates a warning or failure

Regarding Oracle EXP/IMP; Not sure what I am asking here...what are the possibilities if any for Oracle EXP/IMP utility return codes?
[Reidy, Ronald] See above.
And is a return code completely worthless anyway?
[Reidy, Ronald] No.
Would I really need/parse/get the result "Export completed without warnings" to *know* the Oracle EXP/IMP returned successfully?
[Reidy, Ronald] Spool to a log file. Use /bin/egrep to look for the specific lines you would like to see.

I'm all ears...and ready for code samples-scripts, docs, links and references.

Thanks,

Chris Marquez
Oracle DBA

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Received on Thu Aug 18 2005 - 16:49:48 CDT