Start Updating pl sql

Updating pl sql

-- Creating TRIGGER CREATE OR REPLACE TRIGGER trg_before_emp_update BEFORE UPDATE OF JOB_EXPERIENCE, LAST_APPLIED_DATE on job_openings FOR EACH ROW DECLARE years_since_last_applied number(5); BEGIN years_since_last_applied := -1; IF(: NEW.

A view contains rows and columns, just like a real table.

This Article will help you to understand “BEFORE UPDATE TRIGGER statement” with examples and it’s detailed description.

This statement specifies that Oracle will fire this trigger BEFORE the UPDATE operation is executed.

Then we will update values of TXN_NUMBER column of bank_transactions table and will observe values of bank_transactions and bank_transactions_audit tables.