There is only one NoSQL database satisfies all following requirements: 1. easy to use 2. reliable 3. transaction support 4. easy to scale 5. eays to build inde

There is only one NoSQL database satisfies all following requirements: 1. easy to use 2. reliable 3. transaction support 4. easy to scale 5. eays to build indexes It is BigTable. Generally, if your data is not very large, you should use a SQL database. NoSQL is mainly used for easy scaling, not for its schema-less feature.