tPrejob & tPostjob Components

we can perform different type of activities by using the tPrejob & tPostjob Components.

tPrejob :   This will be first component to be run in the Talend job.

                  1)  Run the Child jobs.
                  2) Drop the Database Indexes
                  3)Truncate the Database Tables.
                  4)Disable the Indexes of TABLES.

tPostjob :   This will be last component to be run in the Talend job
         
                1)Re-create the Indexes which are dropped in tPrejob
                2)Enable the Indexes which are disabled in tPrejob

Note : Pre & Post jobs will work even if the job fails.