Real World Example of Consistency

Let’s look at the real world example of how a transaction is made in a bank to ensure data consistency across both the accounts.

Consistency

Step-1: Before transaction 1, the total amount in Account-A is 1000 and in Account-B is also 1000.S
Step-2: After Transaction 1, the total amount in Account-A will be 800 and in Account-B its 1200. As 200 is sent to Account-B in Transaction-1.
Step-3: Similar steps happen in Transaction-2.

What is Database Consistency?

Database consistency governs the most crucial aspects of the database, availability of correct information at the right time by the validation rules specified in the beginning is what decides the data integrity, and accuracy of the data stored.

In this article, we’ll be exploring consistency in the context of a relational database, why it’s crucial to be maintained, its real-world examples, and what features of an RDBMS help maintain a consistent database.

Similar Reads

What is Consistency in Database?

Consistency refers to the correctness & presence of the most recently updated data at any given moment in the database. The idea of having all-time access to purely consistent data is at the core of every relational database, it helps in maintaining the data integrity & accuracy as well....

Types of Consistency

Depending on the use case, there are mainly two types of consistency parameters for every type of database...

Constraints in RDBMS for maintaining consistency

1. Check Constraint: Check Constraint in database ensures that any information before getting inserted adheres to the rules applied to it, there by ensuring the correctness of the data. Ex : A value of age column must be in some range (greater than 0, less than 60, etc.)...

Real World Example of Consistency

Let’s look at the real world example of how a transaction is made in a bank to ensure data consistency across both the accounts....

Frequently Asked Questions on Consistency in DBMS – FAQs

How does constraints helps in maintaining consistency?...