In Hive we can use the LOAD command to bulk load data into our tables,  Load operations are currently pure copy/move operations that move datafiles into locations corresponding to Hive tables and they do not allow any transformation while loading data into tables.   Base Syntax :  [crayon-59255914b1b19710284859/] Let...

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To get the available Hive client command line options use the -H option along with the hive command: [crayon-59255914b22cc904088001/] Run a metadata command from the command line and exit:    For this we will use the -e option followed by the meta command to be executed inside commas. ...

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In this tutorial we will go over the Hive Data Types and give some examples for each of  the data type.  Hive supports most of the primitive data types supported by many relational databases. We have Primary and Complex Data Types available in Hive.  What are the Primary Data Types ? Primitive...

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In our last post we have made a short introduction into Scala and we managed to write our first Scala piece of code - Introduction to Scala Programming. In this tutorial we will focus on Scala Programming Syntax. So what do we need to know about Scala coding...

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Scala is an acronym for “Scalable Language”. This means that Scala grows with you. You can play with it by typing one-line expressions and observing the results. Scala is a pure-bred object-oriented language. Conceptually, every value is an object and every operation is a method-call. Scala is...

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  Timezone data (tzdata) is stored in /usr/share/zoneinfo. To change your CentOS server’s timezone, simply run the following command based up on the examples below:     Example of changing the timezone to Melbourne,Australia: [crayon-59255914b53a4430968489/] this will overwrite your actual local-time configuration. ...

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