MapReduce of simple data cleansing ---- classroom test schedule three

Today is the complete data mapreduce Cleaning the hive database:

The first step: require skilled know how to operate hive database, a few simple commands must master.

Into the hive database

 

Then create a hive database:

 

 

Creating a database using the hive and create table

 

 

Import data into test table:

 

 

Query data hive database test table:

 

 

 

 

 So much a part of the data taken.

View Ctrl + c to exit the hive to save the database.