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




What is CEIL() function in Apache Pig ?

  • CEIL() function is used to get the value of an expression rounded up to the nearest integer.
 Apache Pig celi

Learn Apache Pig - Apache Pig tutorial - Apache Pig celi - Apache Pig examples - Apache Pig programs

Syntax:

grunt> CEIL(expression)

Example:

  • Ensure that we have a file named wikitechy_math.txt in the HDFS directory /pig_data/.
  • This file contains integer and floating point values are given below.

wikitechy_math.txt

4
13 
9 
4.5 
7.9 
3.1 
  • You have loaded this file into Pig with a relation named math_data is given below.
grunt> math_data = LOAD 'hdfs://localhost:9000/pig_data/wikitechy_math.txt' USING          PigStorage(',')
   as (data:float);
  • You compute the ceil values of the contents of the wilitechy_math.txt file using CEIL() function as given below.
grunt> ceil_data = foreach math_data generate (data), CEIL(data);
  • The above statement stores the result in the relation named ceil_data.

Verification:

  • Now you can verify the contents of the relation using the Dump operator as given below.
grunt> Dump ceil_data;

Output:

  • The output shows that the result in the file ceil_data.
(4.0,4.0) 
(13.0,13.0) 
(9.0,9.0) 
(4.5,5.0) 
(7.9,8.0) 
(3.1,4.0)

Related Searches to Apache Pig CEIL()

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.

×