Learning Linux Shell Scripting - Second Edition

Delete the data

If we want to delete single or multiple rows from a table, then we need to use the DELETE command. We can delete single or multiple rows at a time. This is useful for deleting obsolete data.

Now, create the script oracle_07.sh to delete the record:

#!/bin/bash 
sqlplus user1/Test123 <<MY_QUERY 
set serveroutput on; 
DELETE FROM Writers WHERE Name = 'demoname'; 
select * from Writers; 
MY_QUERY 
 

Save the script and run it as follows:

          $ chmod +x oracle_07.sh
          $ ./oracle_07.sh
  

The output will be:

    SQL*Plus: Release 11.2.0.1.0 Production on Mon Apr 30 18:11:07 2018
    
    Copyright (c) 1982, 2009, Oracle.  All rights reserved.
    
    Connected to:
    Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
    With the Partitioning, ...