What is the difference between ‘select from table’ and ‘select column from table’ in hive ?
Answer : Table in Hive is stored as a directory in the HDFS...
What is the difference between Hive and HBase ?
Answer : Hive is query engine...
What is the Difference between apache hive and impala ?
Answer : Hive generates query expressions at compile time...
What is a tool for tuning hive queries ?
Answer : By doing compression at various phases (i.e. on final output, intermediate data),we achieve performance improvement...
