customers and purchases. Given that you have a HIVE installation with 2 tables in it The...
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customers and purchases. Given that you have a HIVE installation with 2 tables in it The customers table has the following structure <cust_name, cust_id, dept> and the purchases table has the structure <purchase_id, cust_id, store, amount> and you run the following SQL query on it: select dept, count(1) from customers group by dept; (i)What does this query do? (ii)How many map-reduce jobs will this require? customers and purchases. Given that you have a HIVE installation with 2 tables in it The customers table has the following structure <cust_name, cust_id, dept> and the purchases table has the structure <purchase_id, cust_id, store, amount> and you run the following SQL query on it: select dept, count(1) from customers group by dept; (i)What does this query do? (ii)How many map-reduce jobs will this require?
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i This SQL query retrieves data from the customers table It groups the data by the dept column ... View the full answer
Related Book For
Accounting for Decision Making and Control
ISBN: 978-0078025747
8th edition
Authors: Jerold Zimmerman
Posted Date:
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