L-CASE

The LCASE() Function converts the value of the field to Lowercase.

The basic syntax is as follows:

SELECT LCASE(Column_Name) FROM Table_Name

Employee
Emp_id	Name	Surname	Salary	Dept_id
1	Rajesh	Khanna	45000	2
2	Sneha	Gupta	55000	4
3	Sandeep	Nehte	95000	1
4	Kirti	Patil	25000	3
5	Nilesh	Jadhav	45000	3
6	Dipesh	Das	35000	5
7	Kailash	Rane	62000	1
8	Kavita	Deshpande	48000	3
9	Sanjay	Datt	50000	3
10	Shruti	Hasan	78000	1

Syntax For SQL:

SELECT Emp_id,LCASE(Name),Surname, salary,Dept_id FROM Employee

After Execute: 

Emp_id	Name	Surname	Salary	Dept_id
1	rajesh	Khanna	45000	2
2	sneha	Gupta	55000	4
3	sandeep	Nehte	95000	1
4	kirti	Patil	25000	3
5	nilesh	Jadhav	45000	3
6	dipesh	Das	35000	5
7	kailash	Rane	62000	1
8	kavita	Deshpande	48000	3
9	sanjay	Datt	50000	3
10	shruti	Hasan	78000	1