The web analytics team uses Hadoop to process access logs. They now want to correlate this data with structured user data residing in a production single-instance JDBC database. They collaborate with the production team to import the data into Hadoop.
Which tool should they use?

Which word or phrase completes the statement; "The intersection of two sets is to INNER JOIN as the union of two sets is to __________."?

What is a property of window functions in SQL commands?

You have been assigned to perform a study of the daily revenue effect of a pricing model of online transactions. All the data currently available has been loaded into an analytics database.
This data includes revenue data, pricing data, and online transaction data. You have completed a thorough univariate analysis of all data and have decided that there are three different models you want to test.
Preliminary results show that all models have equally effective results.
What is the next step?

What provides an extensive library of algorithm building tools to be used with the Hadoop ecosystem?