shell script to pass table name as a parameter in sqlplus? - shell

Question

I have a file called table.txt which stores the table names. I want the sql update query to take the table name one by one from my table.txt file. My code is as follows:
while read LINE1; do
`sqlplus username/pwd#tname <<END |sed '/^$/d'
set head off;
set feedback off;
update &LINE1 set enterprise_id = '1234567890' where enterprise_id is NULL;
update &LINE1 set sim_inventory_id ='1234567890';
COMMIT;
exit;
END`
done < table.txt
it gives an error sqlplus not found. Can you please tell what is wrong?

Answer 1

This is nothing to do with passing the table names. The "sqlplus not found" error means it cannot find that binary executable, so it isn't getting as far as trying to connect or run the SQL commands.
Your shell script can only see environment variables from the calling shell if they were exported. If you've modified your PATH to include the location of the sqlplus binary then you may not have exported it; add export PATH after you set it.
Or you can set the script up to not rely on the shell environment.
export ORACLE_HOME=/path/to/oracle/installation
export PATH=${ORACLE_HOME}/bin:$PATH
export LD_LIBRARY_PATH=${ORACLE}/lib:${LD_LIBRARY_PATH}
while read LINE1; do
sqlplus username/pwd#tname <<END |sed '/^$/d'
set head off;
set feedback off;
update &LINE1 set enterprise_id = '1234567890' where enterprise_id is NULL;
update &LINE1 set sim_inventory_id ='1234567890';
COMMIT;
exit;
END
done < table.txt
Incidentally, updating the same table twice isn't necessary; you could do:
update &LINE1 set enterprise_id = nvl(enterprise_id, '1234567890'),
sim_inventory_id ='1234567890';
It would also be quicker to create a list of all the update statements from your file contents and run them all in a single SQL*Plus session, so you aren't repeatedly creating and tearing down connections. But that's outside the scope of what you asked.