Triggers in Oracle
Course info



Course info



Description
In this course, we will talk extensively about Oracle Triggers. Triggers help us centralize table validations at the lowest level along with providing support for auditing and logging.
We will take an in-depth look at how to define:
- Triggers
- Trigger types
- Row level triggers
- Statement level triggers
- Mutating triggers
Course FAQ
Oracle triggers let you create procedures that are automatically executed when a specific action or event occurs. So if an INSERT, UPDATE, or DELETE statement is issued against a specific table, it will trigger a certain other procedure to be executed.
There are 5 different types of Oracle triggers:
- Statement triggers: DML statements on a specific table/view
- Row triggers: executes for each row affected by a DML statement
- INSTEAD OF triggers: executes on views run rather than the issuing statement
- User event triggers: DDL statements like CREATE and ALTER, user LOGON, etc.
- System event triggers: database startup, shutdown, server erros, etc.
You will learn:
- What Oracle triggers are and why use them
- Row and Statement triggers
- How to create triggers
- Trigger dependencies
- Trigger order and compound triggers
- Trigger exceptions
- Trigger scope
- Trigger applications
- Much more
The only prerequisite for this course is to have some basic Oracle PL/SQL knowledge. Check out this course if you want a refresher, or if you still need to learn Oracle PL/SQL Fundamentals.
This course is for anyone who wants to learn how to set up triggers in Oracle; both DML triggers and system triggers. If you are an Oracle programmer, you will definitely find this course beneficial.