pig tutorial - apache pig tutorial - Apache Pig - SecondsBetween() - pig latin - apache pig - pig hadoop




What is SecondsBetween() Function?

  • SecondsBetween returns the number of whole seconds between ANow and AThen.
  • This means the fractional part of a second (milliseconds etc.) is dropped.
 Apache-Pig-SecondsBetween

Learn apache pig - apache pig tutorial - Apache-Pig-SecondsBetween - apache pig examples - apache pig programs

SecondsBetween() function in Apache Pig

This function accepts two date-time objects and calculates the number of seconds between the two given date-time objects.

Syntax

Here is the syntax of the SecondsBetween() function.

Example

  • Ensure that we have a file named wikitechy_doj_dob.txt in the HDFS directory /pig_data/.
  • This file contains the date-of-birth and date-of-joining details of a particular person, id, dateof-birth and date-of-joining.

wikitechy_doj_dob.txt

001,26/09/1989 09:00:00,16/01/2015 09:00:00
002,20/06/1980 10:22:00,10/08/2011 09:00:00
003,19/12/1990 03:11:44,25/10/2012 09:00:00 
  • We have loaded this file into Pig with a relation named doj_dob_data as shown below.
doj_dob_data = LOAD 'hdfs://localhost:9000/pig_data/wikitechy_doj_dob.txt' USING PigStorage(',')
   as (id:int, dob:chararray, doj:chararray);
  • Now you can calculate the number of seconds between date-of-birth and date-of-joining of the employees using the SecondsBetween() function as shown below.
secondsbetween_data = foreach doj_dob_data generate SecondsBetween(ToDate(doj,
   'dd/MM/yyyy HH:mm:ss'),ToDate(dob,'dd/MM/yyyy HH:mm:ss'));

Verification

Verify the contents of the relation using the Dump operator as shown below.

grunt> Dump secondsbetween_data;

Output

  • The above statement stores the result in the relation named secondsbetween_data.
(798595200)
(982622280)
(689579296)

Related Searches to Apache Pig - SecondsBetween()

Adblocker detected! Please consider reading this notice.

We've detected that you are using AdBlock Plus or some other adblocking software which is preventing the page from fully loading.

We don't have any banner, Flash, animation, obnoxious sound, or popup ad. We do not implement these annoying types of ads!

We need money to operate the site, and almost all of it comes from our online advertising.

Please add wikitechy.com to your ad blocking whitelist or disable your adblocking software.

×