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Apache Pig – Join Operator

Post author:S K S
Post published:August 14, 2021
Post category:apache
Post comments:1 Comment

Here we will discuss about Join Operator in Apache pig. The JOIN operator is used to combine records from two or more relations. While performing a join operation, we declare one (or…

Hive – View and Indexes

Post author:K Z
Post published:August 14, 2021
Post category:Hive
Post comments:1 Comment

In this section we will describes how to create and manage views. Views are generated based on user requirements. You can save any result set data as a view. The…

Apache Pig – Cogroup Operator

Post author:S K S
Post published:August 14, 2021
Post category:apache
Post comments:1 Comment

Here we will discuss about Cogroup Operator in Apache Pig. The COGROUP operator works more or less in the same way as the GROUP operator. The only difference between the two operators is that…

Apache Pig – Group Operator

Post author:S K S
Post published:August 14, 2021
Post category:apache
Post comments:1 Comment

Here we will discuss about Group Operator in Apache Pig. The GROUP operator is used to group the data in one or more relations. It collects the data having the same key.…

Cassandra – Update Data

Post author:k A
Post published:August 14, 2021
Post category:Cassandra
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Updating Data in a Table UPDATE is the command used to update data in a table. The following keywords are used while updating data in a table − Where − This clause…

Apache Pig – Illustrate Operator

Post author:S K S
Post published:August 14, 2021
Post category:apache
Post comments:1 Comment

Here we will discuss about Illustrate operator in Apache Pig. The illustrate operator gives you the step-by-step execution of a sequence of statements. Syntax Given below is the syntax of the illustrate operator. grunt>…

Apache Pig – Explain Operator

Post author:S K S
Post published:August 14, 2021
Post category:apache
Post comments:1 Comment

Here we will discuss about explain operator in apache pig. The explain operator is used to display the logical, physical, and MapReduce execution plans of a relation. Syntax Given below is the…

Cassandra – Create Data

Post author:k A
Post published:August 14, 2021
Post category:Cassandra
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Creating Data in a Table You can insert data into the columns of a row in a table using the command INSERT. Given below is the syntax for creating data in…

Apache Pig – Describe Operator

Post author:S K S
Post published:August 14, 2021
Post category:apache
Post comments:1 Comment

The describe operator is used to view the schema of a relation. Here we will discuss about apache pig describe operator. Syntax The syntax of the describe operator is as follows − grunt> Describe…

Cassandra – Batch Statements

Post author:k A
Post published:August 14, 2021
Post category:Cassandra
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Using Batch Statements Using BATCH, you can execute multiple modification statements (insert, update, delete) simultaneiously. Its syntax is as follows − BEGIN BATCH <insert-stmt>/ <update-stmt>/ <delete-stmt> APPLY BATCH Example Assume there is…