Apache Pig – Distinct Operator
Here we will discuss about Distinct Operator in Apache Pig. TheĀ DISTINCTĀ operator is used to remove redundant (duplicate) tuples from a relation. Syntax Given below is the syntax of the DISTINCT operator. grunt>…
Cassandra – CQL Datatypes
CQL provides a rich set of built-in data types, including collection types. Along with these data types, users can also create their own custom data types. The following table provides…
HiveQL – Select-Order By
In this section we will explains how to use the ORDER BY clause in a SELECT statement. The ORDER BY clause is used to retrieve the details based on one…
Apache Pig – Filter Operator
Here we will discuss about Filter Operator in Apache Pig. TheĀ FILTERĀ operator is used to select the required tuples from a relation based on a condition. Syntax Given below is the…
Cassandra – Delete Data
Deleting Datafrom a Table You can delete data from a table using the command DELETE. Its syntax is as follows ā DELETE FROM <identifier> WHERE <condition>; Example Let us assume there…
Apache Pig – Split Operator
Here we will discuss about Split Operator in Apache Pig. TheĀ SPLITĀ operator is used to split a relation into two or more relations. Syntax Given below is the syntax of the SPLIT operator.…
Apache Pig – Union Operator
Here we will discuss about Union Operator in Apache Pig. TheĀ UNIONĀ operator of Pig Latin is used to merge the content of two relations. To perform UNION operation on two relations,…
HiveQL – Select-Where
The Hive Query Language (HiveQL) is a query language for Hive to process and analyze structured data in a Metastore. This chapter explains how to use the SELECT statement with…
Cassandra – Read Data
Reading Data using Select Clause SELECT clause is used to read data from a table in Cassandra. Using this clause, you can read a whole table, a single column, or…
Apache Pig – Cross Operator
Here we will discuss about Cross Operator in Apache Pig. TheĀ CROSSĀ operator computes the cross-product of two or more relations. This chapter explains with example how to use the cross operator…
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