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ACID properties
ACID Properties for Database Systems The ACID properties are a set of properties that guarantee the consistency and reliability of data in a database. Th...
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ACID Properties for Database Systems The ACID properties are a set of properties that guarantee the consistency and reliability of data in a database. Th...
The ACID properties are a set of properties that guarantee the consistency and reliability of data in a database. They ensure that the data is accurate, consistent, isolated, and durable.
Accuracy:
This means that the data is free from errors and inconsistencies.
For example, a student's name should never be recorded as "123" or a product price as negative.
Consistency:
This means that the data follows the defined data types and constraints.
For example, a student's age should be an integer between 18 and 80, and a product's price should be a decimal between 0 and 99.
Isolation:
This means that multiple users cannot modify the same data at the same time.
For example, when a student tries to update their address, the database ensures that other students won't see their old address until the update is completed.
Durability:
This means that data changes are persisted even in the event of a system failure.
For example, when a user updates their address, the database ensures that the changes are saved to the file system and are not lost.
These properties are essential for maintaining the integrity and reliability of data in a database. They ensure that the data is accurate, consistent, and can be trusted for reliable decision-making