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Full Discussion: Calling SQL LDR and SQL plus scripts in a shell script
Top Forums Shell Programming and Scripting Calling SQL LDR and SQL plus scripts in a shell script Post 302143943 by rajagavini on Monday 5th of November 2007 01:05:23 PM
Old 11-05-2007
Calling SQL LDR and SQL plus scripts in a shell script
Hi-
I am trying to achieve the following in a script so I can schedule it on a cron job. I am fairly new to the unix environment...

I have written a shell script that reads a flat file and loads the data into an Oracle table (Table1) via SQLLDR. This Works fine. Then, I run a nested insert statement to parse through the records in Table1 and load the necessary results into a Table. (Table2). This works fine too.

Here is how my script looks like...

# Always truncate table 1 before loading data.
print "truncate table table1;" | sqlplus -s userid/password@db>$now.log
sqlldr userid/password@db control=dbload.ctl>>$now.log
# Always truncate table 2 before loading data.
print "truncate table table2;" | sqlplus -s userid/password@db>>$now.log
# Parse through Table1 and load only necessary records to Table2.
print "insert into table2 select id, min(STARTDATE) as startdate from table1 group by id, to_char(STARTDATE,'mm/dd/yyyy');" | sqlplus -s userid/password@db>>$now.log

I call this script myscript.sh, which will be run via crontab every 15 mins.

Here are my questions:
1) Note how I establish a database connection to execute every sql I need to run? I am thinking there should be an easy way to this. I looked into the "here documents" but not sure how I can use them above. Do I really need to use the "here document" or is my script good the way as it is now?
Would it open and close the db connections for each sql correctly?

If I do use the "here document", do I need to have one for the sqlldr and the other for all the sqlplus part?

Please advise best way to go ahead.
Thanks
RG
 

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LEARN ABOUT DEBIAN

make_combined_log2

make_combined_log.pl(1) 				      General Commands Manual					   make_combined_log.pl(1)

NAME

       make_combined_log.pl - make combined logfile from SQL database

SYNOPSIS

       make_combined_log.pl <days> <virtual host>

DESCRIPTION

       This perl script extracts the httpd access data from a MySQL database and formats it properly for parsing by 3rd-party log analysis tools.

       The  script  is	intended  to  be run out by cron. Its commandline arguments tell it how many days' worth of access records to extract, and
       which virtual_host you are interested in (because many people log several virthosts to one MySQL db.) This permits you  to  run	it  daily,
       weekly, every 9 days -- whatever you decide.

NOTE

       By  "days"  I  mean "chunks of 24 hours prior to the moment this script is run." So if you run it at 4:34 p.m. on the 12th, it will go back
       through 4:34 p.m. on the 11th.

KNOWN ISSUES

       Because GET and POST are not discriminated in the MySQL log, we'll just assume that all requests are  GETs.  This  should  have	negligible
       effect  on  any analysis software. This could be remedied IF you stored the full HTTP request in your database instead of just the URI, but
       that's going to cost you a LOT of space really quickly...

       Because this is somewhat of a quick hack it doesn't do the most robust error checking in the world. Run it by hand to  confirm  your  usage
       before putting it in crontab.

AUTHOR

       Edward Rudd <eddie@omegaware.com>

MAN PAGE CREATED BY

       Michael A. Toth <lirul.lists@gmail.com> - based on comments of script

COMMENTS

       This man page was written using xml2man (1) by the same author.

Manuals 							       User						   make_combined_log.pl(1)
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