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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 OSF1

uudemon.cleanu

uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME

       uudemon.admin,  uudemon.cleanu,	uudemon.hour,  uudemon.poll  -	Administrative shell scripts for polling remote systems, cleaning up spool
       directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons

SYNOPSIS

       These shell scripts reside in the following directory:
	  /usr/lib/uucp

DESCRIPTION

       All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the  scripts,  remove
       the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file.

       This  script  reports  status  to  the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the
       results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID  (uucpa)	or
       root.  This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com-
       mand is run with the following parameters: -C7, -D7, X2, -o2, -W1.  This script runs the uusched and uuxqt daemons in the background.  This
       script  polls  the  systems  listed  in	the  /usr/lib/uucp/Poll file.  The uudemon.poll script should be scheduled before the uudemon.hour
       script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script.

FILES

       Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files.  Contains the uucp file.

RELATED INFORMATION

       Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1)

       Files: /usr/lib/uucp delim off

																	uudemon(4)
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