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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

shunit2

SHUNIT2(1)																SHUNIT2(1)

NAME

       shunit2 - A unit test framework for shell scripts

SYNOPSIS

       shunit2 unitfile

DESCRIPTION

       shUnit2 is a xUnit unit test framework for Bourne based shell scripts, and it is designed to work in a similar manner to JUnit, PyUnit,
       etc.. If you have ever had the desire to write a unit test for a shell script, shUnit2 can do the job.

       You can either run shunit2 directly from the commandline and specify the unit file or directly source the shunit2 executable.

       If you directly execute shunit2 and don't specify a unitfile shunit2 assumes a empty testfile and will return without an error message.

EXAMPLE

       Simple script to test if 1 equals 1

	   #! /bin/sh
	   testEquality()
	   {
	     assertEquals 1 1
	   }

	   # load shunit2
	   . shunit2

       Execute shUnit2 unit tests directly from the commandline

	   shunit2 /path/to/unit/file

OPTIONS

       shunit2 does not support any commandline options at all. You can either source shunit2 to execute your unit tests or directly run shunit2
       as a commandline script.

SEE ALSO

       For more information see http://code.google.com/p/shunit2/ or have a look at the installed documentation in /usr/share/doc/shunit2/

AUTHOR

       shunit2 was written by Kate Ward <kate.ward@forestent.com>. This manpage was written by Ulrich Dangel <mru@spamt.net>.

  2.1.6 							    03/25/2012								SHUNIT2(1)
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