1.

Point out the wrong statement.(a) Where time-ranges are very wide (e.g., year-long report) and where the data is voluminous, summary tables are a common approach(b) Coprocessors act like RDBMS triggers(c) HBase does not currently support ‘constraints’ in traditional (SQL) database parlance(d) None of the mentionedI have been asked this question during an internship interview.My question is from Schema Design in HBase in chapter Hive and HBase of Hadoop

Answer»

The correct option is (c) HBASE does not currently support ‘constraints’ in TRADITIONAL (SQL) database parlance

For explanation: The advised USAGE for Constraints is in enforcing BUSINESS rules for ATTRIBUTES in the table.



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