An introduction to the basic concepts of SQL Server triggers. Create your first trigger using T-SQL code. Learn how triggers are used and what alternatives exist.

Introduzione

Tipi di trigger

Crea il tuo primo trigger

Esercizio di creazione di trigger

Come si usano i trigger DML

Quando usare i trigger

Creare un trigger per tenere traccia delle modifiche ai dati

Alternative ai trigger

Trigger vs. stored procedure

Trigger vs. colonne calcolate

Introduction to Triggers

Learn about the different types of SQL Server triggers: AFTER triggers (DML), INSTEAD OF triggers (DML), DDL triggers, and logon triggers.

AFTER triggers (DML)

Tracking retired products

The TrackRetiredProducts trigger in action

Practicing with AFTER triggers

INSTEAD OF triggers (DML)

Preventing changes to orders

PreventOrdersUpdate in action

Creating the PreventNewDiscounts trigger

DDL triggers

Tracking table changes

Using FOR in a trigger

Preventing table deletion

Logon triggers

Enhancing database security

Defining a logon trigger

Classification of Triggers

Find out known limitations of triggers, as well as common use cases for AFTER triggers (DML), INSTEAD OF triggers (DML) and DDL triggers.

Known limitations of triggers

Trigger limitations

Creating a report on existing triggers

Use cases for AFTER triggers (DML)

Keeping a history of row changes

Table auditing using triggers

Use cases for INSTEAD OF triggers (DML)

Preventing changes to Products

Checking stock before placing orders

Use cases for DDL triggers

Database auditing

Preventing server changes

Trigger Limitations and Use Cases

Learn to delete and modify triggers. Acquaint yourself with the way trigger management is done. Learn how to investigate problematic triggers in practice.

Deleting and altering triggers

Removing unwanted triggers

Modifying a trigger's definition

Disabling a trigger

Re-enabling a disabled trigger

Trigger management

Managing existing triggers

Counting the AFTER triggers

Troubleshooting triggers

Keeping track of trigger executions

Identifying problematic triggers

Wrapping up

Trigger Optimization and Management

Discounts table

Orders table

Products table

Verificare (audit) il tuo database SQL Server e mantenere l’integrità dei dati può essere impegnativo per DBA e sviluppatori di database. I trigger di SQL Server sono tipi speciali di stored procedure pensati per aiutarti a garantire coerenza e integrità del database. In questo corso imparerai a lavorare con i trigger e a usarli in esempi pratici. In particolare, scoprirai casi d’uso e limitazioni dei trigger e farai pratica nel progettarli e implementarli. Imparerai anche a ottimizzare i trigger in base alle tue esigenze specifiche.

Intermediate SQL Server

Impara a progettare e implementare trigger in SQL Server con esempi pratici.

Creare e ottimizzare i trigger in SQL Server

Scopri come progettare e implementare trigger in SQL Server usando esempi reali.

Sviluppatore SQL Server

SQL Server per amministratori di database

Tipi di trigger

Creare e ottimizzare i trigger in SQL Server

Esercizio pratico interattivo