Managing error handling while running sqlplus from shell scripts

Question

#!/bin/sh

echo \"Please enter evaluate database username\"
read eval_user
echo \"Please enter evaluate database password\"
read eval_pass
echo \"Please enter the da         


        

Answer 1

What Max says is correct. Try this modified script

#!/bin/sh

echo "Please enter evaluate database username"
read eval_user
echo "Please enter evaluate database password"
read eval_pass
echo "Please enter the database name"
read db_name

LOGFILE=shell_log.txt

sqlplus -s /nolog <<-EOF>> ${LOGFILE}
WHENEVER OSERROR EXIT 9;
WHENEVER SQLERROR EXIT SQL.SQLCODE;
connect $eval_user/$eval_pass@$db_name
DBMS_OUTPUT.put_line('Connected to db');
EOF

sql_return_code=$?

if [ $sql_return_code != 0 ]
then
echo "The upgrade script failed. Please refer to the log results.txt for more information"
echo "Error code $sql_return_code"
exit 0;
fi

Please note the use of sql_return_code to capture the SQLPLUS return code.

The DBMS_OUTPUT statement should fail with error - "SP2-0734: unknown command beginning...". You can find the error message in log file.

It is possible to trap the sp2 errors in SQLPLUS 11g using the error logging facility. Please have a look at http://tkyte.blogspot.co.uk/2010/04/new-thing-about-sqlplus.html for more information.