07-04-2016 11:14 AM
I am fairly new to hadoop and using SAS EG to access the data.
I want to run a series of data checks on the data that is stored in hadoop i.e. for a particular table (or library/database) for each (tables)columns identify the min, max, missing, no of records etc...
I tried using the traditional PROC Contents/ PROC Datasets but it takes ages given the volume of data etc..
Is there a better way to run the two commands in hadoop via hive sql?
Effectively I am after a table which shows:
table name, column_name, column type, no of records, no of missing values, no of distinct values, min value, max value, min length, max length,
07-05-2016 05:16 AM