MySQL LCASE is an inbuilt Function in MySQL. It converts a text to lowercase in MySQL. In this article, we will discuss the MySQL LCASE Function. Also, we will discuss a few examples of using it.
This function is synonymous to MySQL LOWER Function.
Syntax
LCASE (string)
Parameters
The Function expects only one parameter. You need to pass the string you need to convert in lowercase as the parameter.
Return Value
The function returns the input string to lowercase in MySQL.

Examples
Let’s see some examples to use the function in queries.
Example 1: Basic Query
You can use the LCASE Function to convert a string to lowercase in MySQL.
mysql> SELECT LCASE('BRINGING KNOWLEDGE TOGEHTER') as lowerCase; +-----------------------------+ | lowerCase | +-----------------------------+ | bringing knowledge togehter | +-----------------------------+ 1 row in set (0.00 sec)
Example 2: SELECT Query
You can use the LCASE Function in SELECT statements.
mysql> SELECT LCASE(user_name) as lowerUserName FROM user_description; +---------------+ | lowerUserName | +---------------+ | chandler | | monica | | ross | +---------------+
Example 3: UPDATE Query
You can also update the existing fields in a table using the function in an UPDATE Query.
mysql> UPDATE user_description SET user_name = LCASE(user_name); Query OK, 3 rows affected (0.07 sec) Rows matched: 3 Changed: 3 Warnings: 0 mysql> SELECT user_name FROM user_description; +-----------+ | user_name | +-----------+ | chandler | | monica | | ross | +-----------+
Conclusion
In this article, we discussed the LCASE Function. It converts a text to lowercase in MySQL. You can read more about it on the Official MySQL Documentation. Also, read more about MySQL String Functions on Concatly.
Also, you can convert text to uppercase using MySQL UCASE Function.

Vishesh is currently working as an Intermediate Software Engineer with Orion Health, New Zealand. He graduated with a Masters in Information Technology from the University of Auckland in 2021. With more than 4 years of work experience, his expertise includes Java, Python, Machine Learning, PHP, Databases, Design and Architecture.