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You're reading from  Learn SQL Database Programming

Product typeBook
Published inMay 2020
Reading LevelIntermediate
PublisherPackt
ISBN-139781838984762
Edition1st Edition
Languages
SQL
Concepts
Database Programming
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Author (1)
Josephine Bush
Josephine Bush
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Josephine Bush

Josephine Bush has over 10 years experience as a Database Administrator. Her experience is extensive and broad-based, including in financial, business, and energy data systems using MySQL, SQL Server, Oracle, and PostgreSQL. She is a Microsoft Certified Solutions Expert: Data Management and Analytics. She holds a BS in Information Technology, an MBA in IT Management, and an MS in Data Analytics.
Read more about Josephine Bush

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Using transactions to save or revert changes

A SQL transaction is a grouping of one or more changes to the database. Transactions help ensure a consistent state in your database. The common terms in SQL transactions are COMMIT and ROLLLBACK. Commit makes the changes permanent and rollback cancels the changes.

There are four properties of transactions to keep in mind:

  • Atomicity: This ensures all changes in a transaction are completed successfully. If they are successful, the changes are committed. If any change isn't successful, all the changes are rolled back.
  • Consistency: This ensures any changes can't violate the database's integrity, including constraints. Changes interrupted by errors due to violations of database integrity are rolled back. This includes any changes that don't violate database integrity.
  • Isolation: All transactions are isolated from...
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Learn SQL Database Programming
Published in: May 2020Publisher: PacktISBN-13: 9781838984762
© 2020 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Josephine Bush

Josephine Bush has over 10 years experience as a Database Administrator. Her experience is extensive and broad-based, including in financial, business, and energy data systems using MySQL, SQL Server, Oracle, and PostgreSQL. She is a Microsoft Certified Solutions Expert: Data Management and Analytics. She holds a BS in Information Technology, an MBA in IT Management, and an MS in Data Analytics.
Read more about Josephine Bush

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