5 SUPER POPULAR DATABASES COMPARED

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According to my opinion, there is no best database. Every database has their own advantages & disadvantages. So, you have to decide what is the best for your needs. 
Here, i am mentioning Top 5 popular databases :- 

1. MYSQL
  • Relational Database
  • exist for 25 years
  • very cheap & easy to use
  • Open-Source
Limitataion of MYSQL :-
  • Not that performant when many operations at once.
  • Not a full SQL database, it has some limitation.


2. MONGODB 

  • non relational database'
  • document-oriented database
  • high performance due to non-relational DB
  • easy to configure & scale
  • Open-Source
Limitation of MONGODBB :-
  • uses high memory for data storage
  • document size is limited to 16 MB.


3. POSTGRESQL                                                                      

  • Relational database
  • Very well Expandable 
  • you can create own DB functions
  • Open-Source
Limitations of POSTGRESQL :-
  • Lower performance compared to competitors
  • not that easy to install for beginners.


4. REDIS :- 
  • Non Relational database, stores data as key-value pairs.
  • used as caching service for quick key lookups.
  • allows  storing very large keys & values(512 MB)
  • Caches its data for quick access
Limitation of REDIS :- 
  • There is no well working clustering solution(combining several servers to a single DB)


5. CLOUD FIRESTONE
  • non-relational databases
  • saves data as collections of documents
  • Super fast
  • easy to setup security lines
Limitations of CLOUD FIRESTONE :- 
  • Google owns your data, so not full control over it
  • queries are very limited.

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