PostgreSQL – LOWER Function

ByAdmin

The LOWER function is used to convert all characters in a given string to lowercase. It takes a string as an argument and returns a new string where all alphabetic characters have been converted to their lowercase equivalents.

Here’s the basic syntax of the LOWER function:

LOWER(string)
  • string is the string or column that you want to convert to lowercase.

Here’s an example of using the LOWER function:

SELECT LOWER('Hello, World!'); -- Returns 'hello, world!'

You can also use the LOWER function with column values in a table. For instance, if you have a table named employees with a column named name, you can convert all last names to lowercase like this:

SELECT LOWER(name) FROM employees;

This query will return a result set with all the name values in lowercase.

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