Update the data

If we want to update a single field or many fields of a row from a particular table, then we need to use the UPDATE command. It can modify single or multiple fields at a time.

Create oracle_06.sh to update the name of the specified ID:

sqlplus user1/Test123 <<MY_QUERY 
set serveroutput on; 
UPDATE Writers SET Name = 'demoname' WHERE Id = 101; 
select * from Writers; 

Save the script and run it as follows:

   $ chmod +x oracle_06.sh 
   $ ./oracle_06.sh 

The output will be:

    SQL*Plus: Release Production on Mon Apr 30 18:08:52 2018
    Copyright (c) 1982, 2009, Oracle.  All rights reserved.
    Connected to:
    Oracle Database 11g Enterprise Edition Release - 64bit Production
    With the Partitioning, OLAP, ...

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