Example of ACID Transactions

For example, let’s say Mridul, wants to transfer 1000 rupees from his savings account (account A) to his checking account (account B). Here’s how the transaction could proceed:

  • Begin Transaction: The system starts a transaction for Mridul’s fund transfer. 
  • Read Data: It reads the current balances of Mridul’s savings and checking accounts. Let’s say the balance of account A is 5000 rupees, and the balance of account B is 3000 rupees. 
  • Perform Operations: The system deducts 1000 rupees from account A and adds 1000 rupees to account B. 
  • Commit Transaction: If the deduction and addition are successful without any issues, the transaction is committed. Account A now has a balance of 4000 rupees, and account B has a balance of 4000 rupees. 
  • Rollback Transaction (if necessary): If any error occurs during the transaction (e.g., insufficient funds in account A), the changes are rolled back. Neither account A nor account B is affected, maintaining data consistency.

MongoDB ACID Transactions

MongoDB ACID transactions are fundamental for ensuring data integrity in database transactions. In MongoDB, ACID properties play a crucial role in maintaining the reliability and consistency of data operations.

In this article, We will learn about ACID transactions in MongoDB, understand their importance with examples, and see how the transaction works in MongoDB along with their use cases.

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