When trying to look at data in a database with really wide rows even just selecting 1 row to see the data is nearly impossible to understand when the single row wraps 7 or 8 times.
MySQL offers the ‘\G’ option to display the output in a single column.
The corresponding method in Hive is to execute the following set command:
!set outputformat vertical
SELECT something FROM some table;
→ Continue reading “How to Return Hive Query Results Similary to MySQL \G in One Vertical Column”
If you want to write a HQL hive query and run it mulitple times from a shell script, each time passing it different data for the query, here is a quick example that should get you started.
The first thing to know is that by specifying n number of -hivevar key value pairs when invoking hive on the command line will allow you to pass that data into the hive process.
For example, if you do the following
→ Continue reading “Running Dynamically Generated Hive Queries From a Shell Script”