Oracle + Unix question , Error validation for SQL statements in co process

Question

Hi,
If I use co process in a shell script , what is the best way to do the error validation of the execution of any sql statements . I was trying to change the following code to make use of co process concept. When I tried echo $? after the execution of a "wrong statements"
it is still giving Zero output ( meaning success)
<<<<<<<<<<<<<<<<<<<<<<<<<<<
cat ${CFG_DIR}/srs_indx.lst | egrep -v '^#' | egrep -v '^[    ]*$' | while read x
do
echo " Processing values :: pre $pre tbl $tbl indx $indx tblspc $tblspc cols $cols param $param" >> ${LOGS_DIR}/srs_indx.log
sqlplus ${BIZSTG} << EOT >> ${LOGS_DIR}/srs_indx.log
set verify on timing on term on echo on feedback on serveroutput on
WHENEVER SQLERROR CONTINUE
drop index $indx;
WHENEVER SQLERROR EXIT FAILURE
alter session set query_rewrite_enabled = true;
create $pre index $indx on $tbl ($cols)
tablespace $tblspc
$param;
exit
EOT
RC=$?
if ( test $RC -ne 0 )
then
     ERR_MSG="ERROR in creating index $indx for table $tbl from srs_indx.ksh of $ENVIR : $APP by `whoami`@`hostname` on `date` "
     echo $ERR_MSG >> ${LOGS_DIR}/srs_indx.log
     process_warning ${LOGS_DIR}/srs_indx.log
     exitstat=1
else
     echo "$indx created at `date`" >> ${LOGS_DIR}/srs_indx.log
fi
done
>>>>>>>>>>>>>>>>>>>>
Any help will be appreciated .
with thanks and regards
Ranjeesh K R

Answer 1

Hi,
Thanks for the response, I guess people misunderstood my question .
My question was about "error handling in case of CO PROCESS". For those who don't know about this, in case CO PROCESS you just need to login once to Oracle. In my above code It is logging in & out for each entry in the list. CO process statements may look Similar to SQL statements in pro*C. In PRO*C we use EXEC, but here print -p statements..
a sample is given for those who are new to co process.
sqlplus -s /nolog |& # Open a pipe to SQL*Plus
print -p -- 'connect user/password@instance'
print -p -- 'set feed off pause off pages 0 head off veri off line 500'
print -p -- 'set term off time off'
print -p -- "set sqlprompt ''"
print -p -- "select sysdate from dual;"
read -p SYSDATE
print -p -- "select user from dual;"
read -p USER
print -p -- "select global_name from global_name;"
read -p GLOBAL_NAME
print -p -- exit
echo SYSDATE: $SYSDATE
echo USER: $USER
echo GLOBAL_NAME: $GLOBAL_NAME
But I got stuck during error handling of these SQL statements, especially the $? / $* returns 0 even after an erroneus execution.
Regards