NoSQL databases aren't a replacement for SQL - they are an alternative. Most software ecosystems around the different NoSQL databases aren't as mature yet. While there are advances, you still haven't got supplemental tools which are as mature and powerful as those available for popular SQL databases. Also, there is much more know-how for SQL ...
NOSQL means only no SQL (or "not only SQL") but that doesn't mean the same as no relational. A relational database in principle would make a very good NOSQL solution - it's just that none of the current set of NOSQL products uses the relational model.
The two primary differences between NoSQL and SQL, with only the first being a true advantage: ACID vs BASE NoSQL typically leaves out some of the ACID features of SQL, cheating its way to higher performance by leaving this layer of abstraction to the programmer. Horizontal Scaling The real advantage of NoSQL is horizontal scaling, aka sharding. Considering NoSQL documents are sort of self ...
A wide column database is one type of NoSQL database. Maybe this is a better image of four wide column databases. My understanding is that the first image at the top, the Column model, is what we called an entity/attribute/value table. It's an attribute/value table within a particular entity (column).
What is NoSQL ? NoSQL is the acronym for Not Only SQL. The basic qualities of NoSQL databases are schemaless, distributed and horizontally scalable on commodity hardware.
What are the advantages of using NoSQL databases? I've read a lot about them lately, but I'm still unsure why I would want to implement one, and under what circumstances I would want to use one.
I'm investigating the different types of NoSQL database types and I'm trying to wrap my head around the data model of column-family stores, such as Bigtable, HBase and Cassandra. First model Some people describe a column family as a collection of rows, where each row contains columns [1], [2]. An example of this model (column families are ...
NoSQL is a movement promoting a loosely defined class of non-relational data stores that break with a long history of relational databases and ACID guarantees.
