What is the function of UNION and SPLIT operators? Give examples?

620

Give me the examples of Columnar database ?

667

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

73

What is the latest version of ambari that is available in the present market?

111

List the advantage of Parquet file in Apache Spark?

521

How can you import only a subset of rows from a table?

73

What is the latest version of spark?

337

What is the roadmap for apache driver version one.0?

78

When we are using queries instead of scripting?

797

What are the different types of tables available in Hive?

767

How job tracker schedules an assignment?

496

Where does the data of a Hive table gets stored?

744

What is meant by Transformation? Give some examples.

382

Which modes can Hadoop be run in? List a few features for each mode?

540

State some DDL Command with brief Description?

55