Easy Tutorial
Postgresql Like Postgresql Syntax Postgresql With Postgresql Null Postgresql Lock Postgresql View Postgresql Privileges Postgresql Limit Postgresql And Or Clauses Postgresql Autoincrement Postgresql Expressions Postgresql Data Type Postgresql Constraints Postgresql Where Clause Postgresql Drop Database Postgresql Select Database Windows Install Postgresql Postgresql Select Linux Install Postgresql Postgresql Join Postgresql Index Postgresql Tutorial Postgresql Schema Postgresql Trigger Postgresql Delete Postgresql Update Postgresql Alias Postgresql Union Postgresql Alter Table Postgresql Functions Postgresql Truncate Table Postgresql Group By Postgresql Sub Queries Postgresql Having Postgresql Insert Into Postgresql Create Table Postgresql Order By Postgresql Datetime Postgresql Create Database Postgresql Drop Table Postgresql Operators Postgresql Transaction Postgresql Distinct Mac Install Postgresql
❮ Postgresql Delete Postgresql Alias ❯

PostgreSQL UPDATE Statement

If we need to update data in a PostgreSQL database, we can use the UPDATE statement.

Syntax

The following is the general SQL syntax for the UPDATE statement to modify data:

UPDATE table_name
SET column1 = value1, column2 = value2...., columnN = valueN
WHERE [condition];

Example

Create a COMPANY table (download COMPANY SQL file), with the following data content:

tutorialprodb# select * from COMPANY;
 id | name  | age | address   | salary
----+-------+-----+-----------+--------
  1 | Paul  |  32 | California|  20000
  2 | Allen |  25 | Texas     |  15000
  3 | Teddy |  23 | Norway    |  20000
  4 | Mark  |  25 | Rich-Mond |  65000
  5 | David |  27 | Texas     |  85000
  6 | Kim   |  22 | South-Hall|  45000
  7 | James |  24 | Houston   |  10000
(7 rows)

The following example updates the salary field for the record with id 3 in the COMPANY table:

tutorialprodb=# UPDATE COMPANY SET SALARY = 15000 WHERE ID = 3;

The result is as follows:

id | name  | age | address    | salary
----+-------+-----+------------+--------
  1 | Paul  |  32 | California |  20000
  2 | Allen |  25 | Texas      |  15000
  4 | Mark  |  25 | Rich-Mond  |  65000
  5 | David |  27 | Texas      |  85000
  6 | Kim   |  22 | South-Hall |  45000
  7 | James |  24 | Houston    |  10000
  3 | Teddy |  23 | Norway     |  15000

As seen from the result, the salary field value for the record with id 3 in the COMPANY table has been modified.

The following example updates both the salary and address fields simultaneously:

tutorialprodb=# UPDATE COMPANY SET ADDRESS = 'Texas', SALARY=20000;

The result is as follows:

id | name  | age | address | salary
----+-------+-----+---------+--------
  1 | Paul  |  32 | Texas   |  20000
  2 | Allen |  25 | Texas   |  20000
  4 | Mark  |  25 | Texas   |  20000
  5 | David |  27 | Texas   |  20000
  6 | Kim   |  22 | Texas   |  20000
  7 | James |  24 | Texas   |  20000
  3 | Teddy |  23 | Texas   |  20000
(7 rows)
❮ Postgresql Delete Postgresql Alias ❯