• A database transaction is used to create, update, or retrieve data. Think of a database transaction as a series of operations performed within a DBMS.
  • In database management systems, concurrency is related to the records (rows) of database tables, and the guards are transactions.
  • A database transaction symbolizes a unit of work, performed within a database management system (or similar system) against a database...
  • In modern databases transactions also do some other things - like ensure that you can't access data that another person has written halfway.
  • Functionality and Features. A Database Transaction is designed to ensure the integrity of data within a DBMS, using a set of prescribed operations.
  • An example of a Non-ACID transaction. Let’s consider the classic example in database history: sending money between two people.
  • In the context of database, a transaction is a logical unit which is independently executed for data retrieval or insert & updates.
  • A commonly used synonym for a transaction is a unit of work. The acronym ACID can be used to remember the properties of database transactions.
  • All the transaction’s database changes between defining the savepoint and rolling back to it are discarded, but changes earlier than the savepoint are kept.
  • If you are preparing for a SQL interview or want to improve your database development skills, you need to understand what a transaction is and how to use it.