Explanation:Wide-column stores such as Cassandra and HBase are optimized for queries over large datasets, and store columns of data together, instead of rows. 5. Point out the wrong statement :
A. Non Relational databases require that schemas be defined before you can add data
B. NoSQL databases are built to allow the insertion of data without a predefined schema
C. NewSQL databases are built to allow the insertion of data without a predefined schema
D. All of the mentioned
Answer:A
Explanation:Wide-column stores such as Cassandra and HBase are optimized for queries over large datasets, and store columns of data together, instead of rows. 5. Point out the wrong statement :
A. Non Relational databases require that schemas be defined before you can add data B. NoSQL databases are built to allow the insertion of data without a predefined schema C. NewSQL databases are built to allow the insertion of data without a predefined schema D. All of the mentioned
Explanation:There’s also no way, using a relational database, to effectively address data that’s completely unstructured or unknown in advance. 6. “Sharding” a database across many server instances can be achieved with :