Saltar al contenido principal

Curso

Transactions and Error Handling in SQL Server

Intermedio

Actualizado 5/2025

Learn to write scripts that will catch and handle errors and control for multiple operations happening at once.

Comienza el curso gratis

Incluido conPremium or Teams

SQLProgramming4 horas14 vídeos52 Ejercicios3,850 XP14,617Certificado de logros

Crea Tu Cuenta Gratuita

o

Al continuar, acepta nuestros Términos de uso, nuestra Política de privacidad y que sus datos se almacenan en los EE. UU.

¿Entrenar a 2 o más personas?

Probar DataCamp for Business

Preferido por estudiantes en miles de empresas

Descripción del curso

It is critical to know how to handle errors and manage transactions when programming SQL scripts. Unhandled errors can be very harmful and can cause unexpected situations, such as inconsistent data in your database, or even worse, errors can lead you to make wrong business decisions. In this course, you will learn how to handle errors and discover how to manage transactions in case of an error. Additionally, you will study what happens when two or more people interact at the same time with the same data. You will practice all these concepts using two datasets, one of them based on bank accounts and the other one on an electric bike store.

Prerrequisitos

Intermediate SQL Server

1

Starting with error handling

Iniciar capítulo

The TRY...CATCH syntax

Your first error-handling script

Nesting TRY...CATCH constructs

Error anatomy and uncatchable errors

Anatomy review

Correcting compilation errors

Giving information about errors

Error function syntax

Using error functions

Using error functions in a nested TRY...CATCH

2

Raising, throwing and customizing your errors

Iniciar capítulo

RAISERROR syntax

CATCHING the RAISERROR

THROW with or without parameters

THROW without parameters

Executing a stored procedure that throws an error

THROW with parameters

Customizing error messages in the THROW statement

Ways of customizing error messages

Concatenating the message

FORMATMESSAGE with message string

FORMATMESSAGE with message number

3

Transactions in SQL Server

Iniciar capítulo

Transactions

Transaction statements

Correcting a transaction

Rolling back a transaction if there is an error

Choosing when to commit or rollback a transaction

@@TRANCOUNT and savepoints

Modifiers of the @@TRANCOUNT value

Checking @@TRANCOUNT in a TRY...CATCH construct

Using savepoints

XACT_ABORT & XACT_STATE

XACT_ABORT behavior

XACT_ABORT and THROW

Doomed transactions

4

Controlling the concurrency: Transaction isolation levels

Iniciar capítulo

Transaction isolation levels

Concurrency phenomena

Using the READ UNCOMMITTED isolation level

READ COMMITTED & REPEATABLE READ

Choosing the correct isolation level

Prevent dirty reads

Preventing non-repeatable reads

SERIALIZABLE isolation level

Prevent phantom reads in a table

Prevent phantom reads just in some rows

Setting READ COMMITTED SNAPSHOT to ON

Comparing WITH (NOLOCK) & READ UNCOMMITTED

Avoid being blocked

Congratulations!

Transactions and Error Handling in SQL Server

Curso
Completo

Obtener certificado de logros

Añade esta credencial a tu perfil, currículum vitae o CV de LinkedIn
Compártelo en las redes sociales y en tu evaluación de desempeño

Incluido conPremium or Teams

Inscríbete ahora

Únete a más 16 millones de estudiantes y empezar Transactions and Error Handling in SQL Server hoy

Crea Tu Cuenta Gratuita

o

Al continuar, acepta nuestros Términos de uso, nuestra Política de privacidad y que sus datos se almacenan en los EE. UU.