What’s more frightening than Halloween? Data migration. processes can be terrifying, and rightfully so. Data migration Whether you’re a company owner, manager, or developer, moving from an database to a database (or vice versa) is quite the undertaking. SQL NoSQL That being considered, modern technology is dictating its terms. Thus, the fear of data migration is simply not a good enough reason for holding on to something which you’ve outgrown. Is Ditching SQL for NoSQL Worth it? Usually, you don’t decide to dump your in the spur of the moment. In most cases, your application and use cases naturally bring you to this point. relational DB The need for greater flexibility — both in the scaling model and the data model— usually serves as motivation for this changeover. Therefore, it’s not a matter of worthiness, it’s more about keeping up with current needs. RDBMS are not Enough Typical web apps are built on a three-tier architecture that includes data, logic, and presentation. If you want to scale the application, you simply add commodity to support more users. However, that’s where there is a catch. web servers Relational databases don’t have a . This means that you won’t get away with using commodity hardware in your scaling initiative. flexible data model Instead, you’ll have to draw on immensely complex, big servers that guzzle up monstrous fees. Seems pretty bleak. Doesn’t it? It's Time Below is some literature for how you decide on whether to free yourself from the shackles (or not): Identify the key requirements for your application: You will hit the jackpot with your NoSQL transitioning when: A. You need due to the shifting market or data needs.
B. You need scalability under notable user demand.
C. You need constant performance with low response time and high throughput.
D. You need operational reliability to handle failures. rapid app development 2.Study the various types of NoSQL offerings: Document databases are not created equal. In some cases, Couchbase might be the database you use to build a responsive and flexible cloud, mobile, and applications that scale with ease. edge computing 3.Make the Tough call: The main difficulty is in understanding the vastness of NoSQL databases. While each record in a SQL database complies with a schema, NoSQL DBs can have each document be composed with a unique structure. Don’t worry, you don’t need any extra management tools to handle those changes to document . schemas Besides, some NoSQL databases have added more structural features to bring the familiar tables and schema format to a NoSQL database. Translation difficulties may include: Denormalization (repetition of data is acceptable in NoSQL).
Sacrificing to achieve scalability. ACID No relationship between the tables (although some of the NoSQL DBs allow relationships between entities). There are a lot of different ways to ETL aka transform data from a SQL database to a NoSQL database, hence you’ll face some dilemmas when deciding on data import as well. Don't Leave Me With all that rambling on about how difficult it is to migrate your data, consider one important point. There may be many situations where you want to leave behind your SQL server and go to a new one. However, there are still lots of use cases where a migration doesn't mean you abandon the old database. You can use multiple database systems to separate data belonging to different applications. Migration is not the only option. You can abandon one or the other, or build a bridge between the two. This is the part when you break free (from the dilemma). Subscribe to ’s newsletters via our subscribe form in the footer. HackerNoon

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