Doubts related to views urgent help needed

Question

Hi all ,
i am new to oracle technology and have a doubt related to VIEWS
i have a master table job_master and i have preapred a view of the master table as
job_master_view
The view i created as create view job_master_view as select * from job_master
Now my doubt is if i exevute a SELECT FOR UPDATE NOWAIT query on the view job_master_view then will corresponding row of the master table also be locked
I am trying to execute above query to avoid simultaneous access by multiple users
I the above approach correct ? and will the row of master table get locked ?
please let me know in case my query is not clear
Thanking in advance
Regards

Answer 1

My question is, how long you are going to hold lock on these table? If not, you can only use select for update with requried records using where cluase. I also suggest other application which updates this table to use same kind of statement, with NOWAIT caluse, when these applicationg trying to get a lock on these records and found already locked my other, it wont block or wait, just statement fails and can be re-tried again.
Bascially triggers are used for sort of action not for selecting data. What you can do is that develop a procedure and call it in the trigger and in the procedure you can easily use dbms_outout.put_line to display output on the sqlprompt.
Jaffar