What is a ACID-compliant database?

 ACID-compliant is a term used to describe a database that meets the following four criteria:

• Atomicity: All of the operations in a transaction are either committed or aborted together. This means that either all of the changes in the transaction are applied to the database, or none of them are.
• Consistency: All transactions must maintain the consistency of the database. This means that the database must always be in a valid state, even after multiple transactions have been committed.
• Isolation: Transactions must be isolated from each other. This means that one transaction cannot see the uncommitted changes of another transaction.
• Durability: Once a transaction has been committed, the changes must be durable. This means that the changes cannot be lost, even if there is a power failure or system crash.

ACID compliance is important for ensuring the integrity and reliability of data in a database. It is especially important for databases that are used in mission-critical applications, such as banking and financial systems.

Examples of ACID-compliant databases include:

• MySQL
• PostgreSQL
• Oracle Database
• Microsoft SQL Server
• IBM DB2

It is important to note that not all databases are ACID-compliant. Some NoSQL databases, such as MongoDB and Cassandra, are not ACID-compliant by default. However, there are ways to make these databases ACID-compliant, such as using transactions and replication.

Whether or not to use an ACID-compliant database depends on the specific needs of your application. If you need a database that is highly reliable and can guarantee the integrity of your data, then an ACID-compliant database is a good choice.