Details – Duration 20 minutes Data is available in HDFS /public/randomtextwriter Get word count for the input data using space as delimiter Number of executors should be 10 Executor memory should be 3 GB Executor cores should be 20 in total (2 per executor) Number of output files should be 8 Target Directory: /user/<YOUR_USER_ID>/solutions/solution05/wordcount Target …
Details – Duration 10 minutes Data is available in local file system under /data/nyse (ls -ltr /data/nyse) Fields (stockticker:string, transactiondate:string, openprice:float, highprice:float, lowprice:float, closeprice:float, volume:bigint) Convert file format to parquet Save it /user/<YOUR_USER_ID>/nyse_parquet
Comments are also necessary to understand why the object was formed and what information it would store. While creating the database, table, and table columns, Apache Hive allows you to add comments. These comments can be left blank if you don’t want to. Example: As part of our Labs. We created an order table. Comment …
Section 7:61. Adding comments to columns and tables Read More »
To create a table in Hive and list all the tables in the current database, you can use the following commands: By default We will Create Managed table If you add the option IF NOT EXISTS, Hive ignores the statement in case the table already exists. AS part of Our Labs we created Orders table
To run Hive queries using Beeline, you can follow these steps: Open a terminal window and enter the command “beeline”. In Hive, the “-u” option is used to specify the JDBC URL for connecting to the Hive server. This option is used in conjunction with the Hive CLI or with other Hive tools such as …
Section 6:58. Running Hive Queries using Beeline Read More »
Beeline is a command-line interface (CLI) for interacting with Apache Hive, an open-source data warehouse system built on top of Hadoop. It is an alternative to the original Hive CLI, which has some limitations and can be difficult to use. Beeline provides a more modern and flexible interface for interacting with Hive. One of the …
Section 6:57. Overview of beeline – Alternative to Hive CLI Read More »
