Simple way to remember this
SQltohadOOP : To import SQL data into HDFS
Hive and Impala both can read data from HDFS
Impala Executes by using MapReduce where as Hive runs parallel queries massively.
SQltohadOOP : To import SQL data into HDFS
Hive and Impala both can read data from HDFS
Impala Executes by using MapReduce where as Hive runs parallel queries massively.
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