User Recponse in Triggers

Hello All
I am new in oracle I need to create a trigger to check for a condition and ask the user for a response if user accepts then the record should be saved else discarded
immidiate help will be appriciated
Thanks in advance

An Oracle trigger runs in the database. The Oracle trigger code resides in the database.
A trigger can be fired by a batch process. A SQL*Plus session. An ASP web page. A Java servlet.
Each of these clients may or may not have an interactive user. May or may not have a screen, mouse and keyboard.
Each of these clients may run on a different platform, using whatever hardware and operating system. The SQL*Plus session can be from a Siemens mainframe. The ASB page from a Windows Server. Etc. Etc.
Now how do you expect the trigger code, running inside the database, to magically work out how to prompt the end-user? How to access that client's terminal (in the case of a mainframe), Dell screen (used by the Windows user), or no screen at all by the batch process.
There are some fundemental concepts that one need to understand when using client server architecture and Oracle. I strongly recommend that you read the Oracle® Database Concepts guide. (http://tahiti.oracle.com)
One cannot use Oracle effectively, or write proficient Oracle code, not understanding these basic concepts.

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