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.

Welcome!

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

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.

Transaksi

Pernyataan transaksi

Membetulkan sebuah transaksi

Membatalkan transaksi jika terjadi kesalahan

Memilih kapan melakukan commit atau rollback transaksi

@@TRANCOUNT dan savepoint

Pengubah nilai @@TRANCOUNT

Memeriksa @@TRANCOUNT dalam konstruksi TRY...CATCH

Menggunakan savepoint

XACT_ABORT & XACT_STATE

Perilaku XACT_ABORT

XACT_ABORT dan THROW

Transaksi doomed

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.

Pengembang SQL Server

SQL Server untuk Administrator Database

Pernyataan transaksi

Transaksi dan Penanganan Kesalahan di SQL Server

Latihan interaktif praktis