Hadoop: Data Processing and Modelling

Time for action – creating a table for the UFO data

Perform the following steps to create a table for the UFO data:

1. Start the Hive interactive shell:

   $ hive
   

2. Create a table for the UFO data set, splitting the statement across multiple lines for easy readability:

   hive> CREATE TABLE ufodata(sighted STRING, reported STRING, sighting_location STRING,    > shape STRING, duration STRING, 
   description STRING COMMENT 'Free text description')

   COMMENT 'The UFO data set.' ;
   

   You should see the following lines once you are done:

   OK
   Time taken: 0.238 seconds
   

3. List all existing tables:

   hive> show tables;
   

   You will receive the following output:

   OK
   ufodata
   Time taken: 0.156 seconds
   

4. Show tables matching a regular expression:

   hive> show tables '.*data';
   

   You will receive ...