Table of Contents
- 1 Does MongoDB support multi-document transactions?
- 2 What is multi-document transaction in MongoDB?
- 3 What is multi-document ACID transactions?
- 4 Does MongoDB provide ACID transactions?
- 5 How does MongoDB different than a traditional database?
- 6 Which of the following is supported by MongoDB ACID transactions?
- 7 Which database is good for transactions?
- 8 Does MongoDB support multi-document Transactions?
- 9 Do replica sets require transactions in MongoDB?
- 10 What is an ACID transaction in MongoDB?
Does MongoDB support multi-document transactions?
For situations that require atomicity of reads and writes to multiple documents (in a single or multiple collections), MongoDB supports multi-document transactions. With distributed transactions, transactions can be used across multiple operations, collections, databases, documents, and shards.
What is multi-document transaction in MongoDB?
The MongoDB v4.0 introduces multi-document transactions for replica sets and can be used across multiple operations, collections, and documents. The multi-document transactions provide a globally consistent view of data, and enforce all-or-nothing execution to maintain data integrity.
How do I create a transaction in MongoDB?
MongoDB doesn’t support transactions, but saving one document is atomic. So, it is better to design you database schema in such a way, that all the data needed to be saved atomically will be placed in one document.
What is multi-document ACID transactions?
These are multi-statement operations that need to be executed sequentially without affecting each other. For the sample above we can create two transactions, one to add a user and another to update a user with a field of age.
Does MongoDB provide ACID transactions?
How do ACID transactions work in MongoDB? MongoDB added support for multi-document ACID transactions in version 4.0 in 2018 and extended that support for distributed multi-document ACID transactions in version 4.2 in 2019. MongoDB’s document model allows related data to be stored together in a single document.
How does MongoDB transaction work?
To use a transaction, start a MongoDB session through a driver. Then, use that session to execute your group of database operations. You can run any of the CRUD (create, read, update, and delete) operations across multiple documents, multiple collections, and multiple shards.
How does MongoDB different than a traditional database?
MongoDB stores data in form of documents and do not use SQL to query databases. RDBMS is a relational database management system and works on relational database. MongoDB is a non-relational, document oriented database management system and works on document based database.
Which of the following is supported by MongoDB ACID transactions?
MongoDB is finally getting support for multi-document ACID (atomicity, consistency, isolation, durability) transactions.
Is NoSQL good for transactions?
Majority of NoSQL databases support eventual consistency instead of strong consistency. They do not support database transactions which ensure strong data consistency. Therefore, NoSQL databases would be useful for managing data in such applications.
Which database is good for transactions?
If your data is primarily structured, a SQL database is likely the right choice. A SQL database is a great fit for transaction-oriented systems such as customer relationship management tools, accounting software, and e-commerce platforms.
Does MongoDB support multi-document Transactions?
Since MongoDB allows document embedding, you don’t necessarily need to use a transaction to meet a write operation. MongoDB version 4.0 provides multi-document transaction support for replica set deployments only and probably the version 4.2 will extend support for sharded deployments (per their release notes).
Do I need to use multi-document Transactions?
As you may have experienced while working with MongoDB, most use cases do not require you to use multi-document transactions. When you model your data using our rule of thumb Data that is accessed together should be stored together, you’ll find that you rarely need to use a multi-document transaction.
Do replica sets require transactions in MongoDB?
MongoDB version 4.0 introduced the multi-document transaction support for replica sets as a feature of improving data integrity and consistency. However, there are very few applications that would require transactions when using MongoDB.
What is an ACID transaction in MongoDB?
Database systems have a mandate to guarantee data consistency and integrity especially when critical data is involved. These aspects are enforced through ACID transactions in MongoDB.