I know there are three different, popular types of non-sql databases.
- Key/Value: Redis, Tokyo Cabinet, Memcached
- ColumnFamily: Cassandra, HBase
- Document: MongoDB, CouchDB
I have read long blogs about it without understanding so much.
I know relational databases and get the hang around document-based databases like MongoDB/CouchDB.
Could someone tell me what the major differences are between these and the 2 former on the list?