Handle Not Found Exceptions in sqlplus - oracle

Question

I am trying to invoke sqlplus command from a shell script and then trying to
check for success/failure using the exit status. However this does not work fo not found scenario. I need to get the exit code of non zero when there are no rows deleted for a given input.
sqlplus -s $DB_CONNECTION << EOF
set heading off pages 0 echo off feedback off
WHENEVER SQLERROR EXIT SQL.SQLCODE
BEGIN
DELETE FROM config where Id_ = '1345';
IF SQL%ROWCOUNT = 0 THEN
RAISE NO_DATA_FOUND;
END IF;
EXCEPTION
WHEN NO_DATA_FOUND THEN
EXIT 100;
END;
EOF

Answer 1

A PL/SQL EXIT statement only works inside a LOOP . Check this: EXIT Statement. It is not equivalent to shell's exit <exitcode> or SQL* Plus' exit.So, your PL/SQL block won't compile at all.
Moreover, you cannot ensure that Shell will capture the same exit code as that of the Oracle's SQLCODE for exceptions like no_data_found. Since you already have WHENEVER SQLERROR, you may not include the EXCEPTION block at all and simply check for non-zero exit code.
sqlplus -s $DB_CONNECTION << EOF
set heading off pages 0 echo off feedback off
WHENEVER SQLERROR EXIT SQL.SQLCODE
BEGIN
DELETE FROM config where Id_ = '1345';
IF SQL%ROWCOUNT = 0 THEN
RAISE NO_DATA_FOUND;
END IF;
END;
EOF
exit_code=$?
if [ $exit_code != 0 ]
then
echo "No rows deleted for the given input"
fi