To begin the course, you will learn how to handle errors using the TRY...CATCH construct that provides T-SQL.  You will study the anatomy of errors, and you will learn how to use some functions that can give you information about errors.

Selamat datang!

Sintaks TRY...CATCH

Skrip penanganan kesalahan pertama Anda

Menanamkan konstruksi TRY...CATCH

Anatomi error dan error yang tidak dapat ditangkap

Tinjauan anatomi

Memperbaiki galat kompilasi

Memberikan informasi tentang error

Sintaks fungsi error

Menggunakan fungsi kesalahan

Menggunakan fungsi error dalam TRY...CATCH bersarang

Starting with error handling

In this chapter, you will deepen your knowledge of handling errors. You will learn how to raise errors using RAISERROR and THROW. Additionally, you will discover how to customize errors.

RAISERROR

RAISERROR syntax

CATCHING the RAISERROR

THROW

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

Raising, throwing and customizing your errors

In this chapter, you will be introduced to the concept of transactions. You will discover how to commit and rollback them. You will finish by learning how to return the number of transactions and their state.

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

Transactions in SQL Server

This chapter defines what concurrency is and how it can affect transactions. You will learn exciting concepts like dirty reads, repeatable reads, and phantom reads. To avoid or allow this reads, you will explore, one by one, the different transaction isolation levels.

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

SNAPSHOT

Setting READ COMMITTED SNAPSHOT to ON

Comparing WITH (NOLOCK) & READ UNCOMMITTED

Avoid being blocked

Congratulations!

Controlling the concurrency: Transaction isolation levels

Electric bike store dataset and Bank accounts dataset

Sangat penting untuk memahami cara menangani kesalahan dan mengelola transaksi saat memrogram skrip SQL. Kesalahan yang tidak ditangani dapat berdampak serius dan menimbulkan situasi tak terduga, seperti data yang tidak konsisten di basis data Anda, atau yang lebih buruk lagi, kesalahan dapat membuat Anda mengambil keputusan bisnis yang keliru.
Dalam kursus ini, Anda akan mempelajari cara menangani kesalahan dan bagaimana mengelola transaksi apabila terjadi kesalahan. Selain itu, Anda akan mempelajari apa yang terjadi ketika dua orang atau lebih berinteraksi secara bersamaan dengan data yang sama. Anda akan mempraktikkan semua konsep ini menggunakan dua himpunan data, salah satunya berbasis rekening bank dan yang lainnya pada toko sepeda listrik.

Intermediate SQL Server

Pelajari menulis skrip untuk menangkap dan menangani kesalahan serta mengontrol banyak operasi sekaligus.

Transaksi dan Penanganan Kesalahan di SQL Server

Pelajari cara menulis skrip yang dapat mendeteksi dan menangani kesalahan serta mengelola beberapa operasi yang terjadi secara bersamaan.

Memberikan informasi tentang error

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