Database Research & Development

  • Home
  • NoSQL
    • NoSQL
    • Cassandra
  • Databases
    • Database Theory
    • Database Designing
    • SQL Server Coding Standards
    • SQL Server
    • PostgreSQL
    • MySQL
    • Greenplum
    • Linux
  • Interviews
    • SQL Server Interviews
    • MySQL Interviews
    • SQL Puzzles
  • DBA Scripts
    • SQL Server DBA Scripts
    • PostgreSQL DBA Scripts
    • MySQL DBA Scripts
    • Greenplum DBA Scripts
  • Home
  • Blog Archives !
  • (: Laugh@dbrnd :)
  • Contact Me !
sqlserverinterviews
Home 2018 April PostgreSQL: Example of CROSSTAB query, for PIVOT arrangement

PostgreSQL: Example of CROSSTAB query, for PIVOT arrangement

This article is half-done without your Comment! *** Please share your thoughts via Comment ***

In this post, I am sharing an example of CROSSTAB query of PostgreSQL. The “tablefunc” module provides the CROSSTAB() which uses for displaying data from rows to columns.

I already shared few similar articles on PostgreSQL PIVOT and new CROSSTABVIEW.

PostgreSQL: CREATE PIVOT TABLE to arrange Rows into Columns form

PostgreSQL 9.6: Introduced CROSSTABVIEW (pivot) in PSQL

Please check the below demonstration:

Create a required extension:

1
CREATE EXTENSION tablefunc;

Create sample table with data:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CREATE TEMP TABLE test_crosstab
(
Product_Name TEXT
,Product_Category TEXT
,Product_Count INT
);
 
INSERT INTO test_crosstab
VALUES
('Mobile','IT',20)
,('Mobile','ELE',40)
,('Desktop','IT',50)
,('Desktop','ELE',60)
,('Laptop','IT',30)
,('Laptop','ELE',70);

PostgreSQL Sample Data

Use CROSSTAB for displaying data from rows to columns:

1
2
3
4
5
6
7
SELECT *
FROM CROSSTAB
(
'SELECT Product_Name, Product_Category, Product_Count
FROM test_crosstab
ORDER BY 1,2'
)AS T (Product_Name text, IT INT, ELE INT)

Result:

PostgreSQL Crosstab

Apr 26, 2018Anvesh Patel
PostgreSQL: How to Recover postgres User Password?PostgreSQL: Move Main Data Directory in Linux (Ubuntu 16.4)

Leave a Reply Cancel reply

CAPTCHA
Refresh

*

Anvesh Patel
Anvesh Patel

Database Engineer

April 26, 2018 PostgreSQLAnvesh Patel, CROSSTAB Pivot, CROSSTAB View, database, database research and development, dbrnd, PIVOT PostgreSQL, PIVOT Query, plpgsql, Postgres Query, postgresql, PostgreSQL Administrator, PostgreSQL Error, PostgreSQL Monitoring, PostgreSQL Performance Tuning, PostgreSQL Programming, PostgreSQL Tips and Tricks, tablefunc
About Me!

I'm Anvesh Patel, a Database Engineer certified by Oracle and IBM. I'm working as a Database Architect, Database Optimizer, Database Administrator, Database Developer. Providing the best articles and solutions for different problems in the best manner through my blogs is my passion. I have more than six years of experience with various RDBMS products like MSSQL Server, PostgreSQL, MySQL, Greenplum and currently learning and doing research on BIGData and NoSQL technology. -- Hyderabad, India.

About DBRND !

dbrnd

This is a personal blog (www.dbrnd.com).

Any views or opinions represented in this blog are personal and belong solely to the blog owner and do not represent those of people, institutions or organizations that the owner may or may not be associated with in professional or personal capacity, unless explicitly stated.

Feel free to challenge me, disagree with me, or tell me I’m completely nuts in the comments section of each blog entry, but I reserve the right to delete any comment for any reason whatsoever (abusive, profane, rude, or anonymous comments) - so keep it polite.

The content of this website is protected by copyright. No portion of this website may be copied or replicated in any form without the written consent of the website owner.

Recent Comments !
  • Anvesh Patel { Sure will do... } – May 27, 12:43 PM
  • Anvesh Patel { Great... } – May 27, 12:41 PM
  • Anvesh Patel { Great... } – May 27, 12:39 PM
  • Anvesh Patel { Great... } – May 27, 12:36 PM
  • Anvesh Patel { Great... } – May 27, 12:28 PM
  • Anvesh Patel { Great... } – May 27, 12:27 PM
  • Anvesh Patel { Great... } – May 27, 12:16 PM
  • Older »
Follow Me !
  • facebook
  • linkedin
  • twitter
  • youtube
  • google
  • flickr
© 2015 – 2019 All rights reserved. Database Research & Development (dbrnd.com)
Posting....