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PostgreSQL: How to Delete all duplicate rows Except one

I have already written a similar article to delete duplicate records in SQL Server and MySQL. Here, You can also access that articles. Delete all duplicate rows in MySQL Delete all duplicates rows except one in SQL Server Recently, I got one request for one script to delete duplicate records in PostgreSQL. Most of the […]

September 17, 2019 PostgreSQL
August 12, 2019 1

SQL Puzzle: SQL Advance Query – Find the Order basis on thier Status and Step

August 5, 2019

SQL Server: How to compare your objects between two Databases

July 29, 2019 2

SQL Puzzle: SQL Advance Query – Generate the group of Sequences

July 22, 2019

PostgreSQL: Create Index on Full Text Search tsvector Data

July 15, 2019 1

SQL Puzzle: SQL Advance Query – Generate the range of data basis on common combination

July 8, 2019

Database Theory: What is CAP theorem – Consistency, Availability, Partition

July 1, 2019 1

PostgreSQL: Example of SERIALIZABLE Isolation Level

June 24, 2019

SQL Server: Script to check Network or Connect permission of User

June 17, 2019 3

SQL Puzzle: SQL Advance Query – To generate the account balance column for Bank Accounts

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PostgreSQL 9.4: The JSON data type is Awesome (Part 1/3)
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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.

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Recent Comments !
  • none { dont works } – Sep 16, 12:29 PM
  • Tiago van den Berg { Great Post. Disabling triggers speed up batch processings. For simple UPDATE cases where it is necessary, POSTGRES allows deferrable foreign keys. That means that a foreign key will be validated only after commiting transaction. So it is possible to modifiy all records that share a constrained key inside a transaction.... } – Sep 12, 4:03 PM
  • alok { thanks bro use full } – Sep 12, 7:57 AM
  • Akansha { How to use similarity function on single column. I have a column with address values. I want to check similarity within column. } – Sep 11, 12:38 PM
  • Akansha { Thanks for the solution. I have a similar problem with single column. there are millions of addresses in a single column and i want a match percentage of one value with others. How can i do that? } – Sep 11, 11:32 AM
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