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What is MySQL Trigger Creation and Management about?

Here is the trigger to update the total salary in SalaryBudgets after a row is deleted from Salaries: DELIMITER $$ CREATE TRIGGER update_salary_budget AFTER DELETE ON Salaries FOR EACH ROW BEGIN UPDATE SalaryBudgets SET total = total - OLD.salary; END$$ DELIMITER ; To test it: DELETE FROM Salaries WHERE employeeNumber = 1002; SELECT * FROM SalaryBudgets; This trigger uses the OLD row to access the salary of the deleted row and subtracts it from the total in SalaryBudgets.

Author

sarthaksainia12

Language

EN