Trigger updating same row

Posted by / 08-Dec-2020 15:18

Trigger updating same row

-- 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.LAST_APPLIED_DATE IS NOT NULL) THEN SELECT MONTHS_BETWEEN(TO_DATE(sysdate,'DD-MON-YYYY'), TO_DATE(: NEW.

Then we will create audit table bank_transactions_audit.In real life scenarios, BEFORE UPDATE Trigger mostly used for purposes like, (1) Restrict Invalid Data Entry in DB via UPDATE statement, (2) Updating some data into same table. UPDATED_BY, UPDATE_DATE) and (3)Logging/Auditing data before UPDATE of the data.(1) Restrict Invalid Data Entry in DB via UPDATE statement.Changed data can be referred to in the triggered-SQL-statement using serve as a table identifier for the triggered-SQL-statement or the trigger qualification.The referencing clause allows you to provide a correlation name or alias for these transition tables by specifying OLD_TABLE/NEW_TABLE AS correlation-Name Only statement triggers (see Statement versus row triggers) can use the transition tables.

trigger updating same row-40trigger updating same row-32trigger updating same row-35

A trigger operates with the privileges of the owner of the trigger.

One thought on “trigger updating same row”