PostgreSQL INITCAP() Function

The PostgreSQL INITCAP() function converts the first letter of each word to upper case and the rest to lower case. Words are sequences of alphanumeric characters separated by non-alphanumeric characters. If there are characters in the string that are not letters, they will be unaffected by this function.

Syntax

INITCAP(string)

Parameters

string Required. Specify the string to convert.

Return Value

Returns the string with first letter of each word to upper case and the rest to lower case.

Example 1:

The example below shows the usage of INITCAP() function.

SELECT INITCAP('Learning PostgreSQL is FUN!');
Result: 'Learning Postgresql Is Fun!'

SELECT INITCAP('PostgreSQL tutorial');
Result: 'Postgresql Tutorial'

Example 2:

Consider a database table called Employee with the following records:

EmpID	Name	City	Age	Salary
1	John	london	25	3000
2	Marry	new york	24	2750
3	Jo	paris	27	2800
4	Kim	amsterdam	30	3100
5	Ramesh	new delhi	28	3000
6	Huang	beijing	28	2800

The query given below is used to convert the City column values using this function.

SELECT *, 
INITCAP(City) AS INITCAP_Value 
FROM Employee;

The query will produce the following result:

EmpID	Name	City	Age	INITCAP_Value
1	John	london	25	London
2	Marry	new york	24	New York
3	Jo	paris	27	Paris
4	Kim	amsterdam	30	Amsterdam
5	Ramesh	new delhi	28	New Delhi
6	Huang	beijing	28	Beijing

❮ PostgreSQL Functions