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Post 50 | HDPCD | Order Hive query output across multiple reducers

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to enable vectorization in Hive. In this tutorial, we are going to see how to run a subquery within a Hive query. Let us begin, then. The following infographics show the step-by-step process of performing this operation. From … Continue reading Post 50 | HDPCD | Order Hive query output across multiple reducers

Post 49 | HDPCD | Using a subquery within a Hive query

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to enable vectorization in Hive. In this tutorial, we are going to see how to run a subquery within a Hive query. Let us begin, then. As you can see from the above screenshot, the process of performing … Continue reading Post 49 | HDPCD | Using a subquery within a Hive query

Post 48 | HDPCD | Printing the execution plan of a Hive query

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to enable vectorization in Hive. In this tutorial, we are going to see how to print the execution plan of a Hive query. Let us begin, then. This is one of the simplest tutorials in this certification series. In … Continue reading Post 48 | HDPCD | Printing the execution plan of a Hive query

Post 47 | HDPCD | Run a Hive query using Vectorization

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to run a Hive Query using TeZ execution engine. In this tutorial, we are going to see how to run a Hive Query using Vectorization. Let us begin, then. Before starting off with the objective of this tutorial, let … Continue reading Post 47 | HDPCD | Run a Hive query using Vectorization

Post 46 | HDPCD | Run a Hive Query using Tez Execution Engine

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to perform a JOIN operation between two Hive tables. In this tutorial, we are going to see how to run a Hive Query using TeZ execution engine. Let us begin, then. As you can see from the above … Continue reading Post 46 | HDPCD | Run a Hive Query using Tez Execution Engine

Post 45 | HDPCD | Join two Hive tables

  Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to insert a new row into a Hive table. In this tutorial, we are going to see how to join two Hive tables. Let us begin, then. The above info-graphics show the step by step process … Continue reading Post 45 | HDPCD | Join two Hive tables

Post 44 | HDPCD | Insert a row in the Hive table

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to delete a row in a Hive table. In this tutorial, we are going to see how to insert a row in the Hive table. It is quite interesting to see that Hive supports ACID operations … Continue reading Post 44 | HDPCD | Insert a row in the Hive table

Post 43 | HDPCD | Delete a row in a Hive table

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to update a row in a Hive table. In this tutorial, we are going to see how to delete a row in the Hive table. It is quite interesting to see that Hive supports ACID operations … Continue reading Post 43 | HDPCD | Delete a row in a Hive table

Post 42 | HDPCD | Update a row in a Hive table

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to load the compressed data into a Hive table. In this tutorial, we are going to see how to update a row in the Hive table. It is quite interesting to see that Hive supports ACID … Continue reading Post 42 | HDPCD | Update a row in a Hive table

Post 41 | HDPCD | Loading compressed data into a Hive table

Hello, everyone. Thanks for returning for the next tutorial in the HDPCD certification series. In the last tutorial, we saw how to load data into a Hive table from a SELECT query. In this tutorial, we are going to see how to load the compressed data from into the Hive table. Let us begin then. The above … Continue reading Post 41 | HDPCD | Loading compressed data into a Hive table