Concurrent execution

Shell Programming and Scripting
1

Hi all,

I have a folder with sql files that need to be inserted in a DB with SQL*Plus. The thing is that it takes too long to insert them all one by one, so I want to insert them five at a time.

Currently what I use is this:

for $FILENAME in *.sql
do
  sqlplus -s $DBUSER@$SID << EOF
  set heading off feedback off serveroutput on trimout on pagesize 0 
  spool $LOG append
  whenever oserror exit 10
  whenever sqlerror exit 5
  @$FILENAME.sql
  spool off
  exit
EOF
done

If I run two or more instances of the above, every instance will take only one sql file and then exit despite the fact that sql files still exist. Only the last instance will keep finding files.

Any help will be greatly appreciated!