Why should we use "distinct" keyword in pig script?

0 votes

Hi,

I am new to Apache Pig and started working with the fundamentals. There I came through a keyword "Distinct" but did not understand why to use it. Can anyone tell the use of this keyword?

May 3, 2019 in Big Data Hadoop by disha
49 views

1 answer to this question.

0 votes

Hey,

The "distinct" statement is very simple. It removes duplicate records. It works only on entire records, not on individual fields.

answered May 3, 2019 by Gitika
• 25,460 points

Related Questions In Big Data Hadoop

0 votes
1 answer

Why should we use "extends Mapper" for Mapreduce code?

The Mapper class belongs to package org.apache.hadoop.mapreduce ...READ MORE

answered Feb 8, 2019 in Big Data Hadoop by Omkar
• 68,860 points
59 views
0 votes
1 answer

Why we use --split by command in Sqoop?

The command --split-by is used to specify the ...READ MORE

answered Apr 11, 2019 in Big Data Hadoop by Gitika
• 25,460 points
1,557 views
0 votes
0 answers

Why we use 'help' command in Hadoop Sqoop?

Use of help command in Hadoop sqoop. READ MORE

Apr 11, 2019 in Big Data Hadoop by amrita
46 views
0 votes
1 answer

Why do we need the FOR EACH operation in Pig Scripts?

The operation FOREACH in Apache Pig is ...READ MORE

answered Apr 30, 2019 in Big Data Hadoop by Gitika
• 25,460 points
36 views
0 votes
1 answer

What do we exactly mean by “Hadoop” – the definition of Hadoop?

The official definition of Apache Hadoop given ...READ MORE

answered Mar 16, 2018 in Big Data Hadoop by Shubham
307 views
+1 vote
1 answer

Hadoop Mapreduce word count Program

Firstly you need to understand the concept ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
• 10,840 points
3,899 views
0 votes
1 answer

hadoop.mapred vs hadoop.mapreduce?

org.apache.hadoop.mapred is the Old API  org.apache.hadoop.mapreduce is the ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
• 10,840 points
535 views
+1 vote
11 answers

hadoop fs -put command?

put syntax: put <localSrc> <dest> copy syntax: copyFr ...READ MORE

answered Dec 7, 2018 in Big Data Hadoop by Aditya
20,714 views
0 votes
1 answer

Why we use Relation keyword in pig?

Hey, In pig, Relation represents a complete database. ...READ MORE

answered May 7, 2019 in Big Data Hadoop by Gitika
• 25,460 points
35 views
+1 vote
1 answer

Why do we use STORE command in pig?

Hey, We use store command to store the ...READ MORE

answered May 7, 2019 in Big Data Hadoop by Gitika
• 25,460 points
74 views