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How to automate sql script using cron job

Posted on 2007-12-04
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Last Modified: 2013-12-18
Dear experts -
I have to automate a sql script to run every day. I would like to know the various ways. I would prefer to do it using CRON. Please advice. Kind of urgent

regards
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Question by:akp007
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by:chedgey
chedgey earned 50 total points
ID: 20403786
What does your SQL script do?

If it a simple SQL script then the Oracle Job Scheduler is your best bet. See:
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_sched.htm#sthref6598

If the is controlled from a shell or Perl script then you can schedule it from CRON using by editiing Oracle's CRONTAB using the command "crontab -e".

Regards

chedgey
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Author Comment

by:akp007
ID: 20403868
my script involves read from db and write to a table. I have an alter statement to change the optimizer setting. So it has alter,select and insert. I want to use shell for that. can you please provide me a some kind of script or idea, I can take it from there. Thanks for the fast response
regards
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by:Jinesh Kamdar
Jinesh Kamdar earned 100 total points
ID: 20404027
Create a SQL script with ur DML / DDL statements. Next create a shell script that invokes the SQLPLUS with the SQL script. Another option is to create a stored procedure for your DDL / DML statements and schedule a DBMS_JOB to run it at periodic intervals.
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johnsone earned 350 total points
ID: 20406554
Below is a sample script that you could put into cron.  Remember that cron does not set the environment so you have to do it in the script.
#!/bin/sh
 
ORACLE_SID=<sid>
ORACLE_HOME=<ora_home>
PATH=${PATH}:${ORACLE_HOME}/bin
export ORACLE_SID ORACLE_HOME PATH
 
${ORACLE_HOME}/bin/sqlplus <user>/<pass> << END
-- Statements go here
exit
END

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by:akp007
ID: 20414193
Thanks. I got an idea and now I am implementing it
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