Tag: ETL
Hive : Learn hive external functions and how can you use external functions in Hive?
Hive is built on top of Hadoop, which is a distributed file system and a framework for processing large data…
Hive : Hive custom input/output formats .How can you use custom input/output formats in Hive?
Introduction to Custom Input/Output Formats in Hive: Hive allows users to define custom input and output formats to read and…
Hive : How can you increase parallelism in Hive?
Introduction to Parallelism in Hive: Parallelism refers to the ability to execute multiple tasks simultaneously. In the context of Hive,…
Hive : How can you configure job scheduling in Hive?
To ensure that your Hive jobs run smoothly, it is important to configure job scheduling in Hive. Job scheduling allows…
Hive : How can you use RC file format (Record Columnar File) in Hive ?
RC File is a columnar storage format used in Hive for storing structured data. It is designed to optimize the…
Hive : Role of Hive type coercion and how can you perform type coercion in Hive?
In Hive, type coercion is the process of converting one data type to another data type during query execution. Type…
Hive : Role of Hive CBO (cost-based optimization) and how can you enable CBO in Hive
Hive’s Cost-Based Optimization (CBO) is a powerful feature that enables Hive to optimize queries based on the estimated cost of…
Hive : How can you reduce skew join in Hive ?
In Hive, a skew join occurs when one or more keys in a table have significantly more values than other…
Hive : Hive’s dynamic partitioning and how can you use it in your Hive queries?
Hive’s dynamic partitioning is a feature that enables the automatic partitioning of data in Hive tables based on the data’s…
Hive : Hive’s ACID properties and how can you implement them in a table?
One of the key features that makes Hive a powerful tool for big data analytics is the support for ACID…