LTRIM stands for left trim — it trims blank spaces occurring on the left side of a given string.
Syntax:
LTRIM(string)
Example:
select ltrim(' smith');
------------------------
smith
select ltrim('Hello');
-------------------
Hello

In MySQL, LTRIM does the same job — trims any blank spaces from the left side of a given string.
Syntax:
LTRIM(string)
Example:
mysql> select ltrim(' smith');
+-------------------+
| ltrim(' smith') |
+-------------------+
| smith |
+-------------------+
mysql> select ltrim('Hello');
+----------------+
| ltrim('Hello') |
+----------------+
| Hello |
+----------------+
