The Ltrim function removes characters from the left-hand side of an expression.
Ltrim syntax
LTRIM( expression, [ trim_expression ] )
Ltrim example
select ltrim(' example') from dual;
Result: example
select ltrim('000function', '0') from dual;
Result: function
select ltrim('123SQL', '123') from dual;
Result: SQL
select ltrim('123123SQL123', '123') from dual;
Result: SQL123
select ltrim('XYZxyzTest', 'XYZ') from dual;
Result: xyzTest
select ltrim('xyzzxyxxzzyyxTest', 'xyz') from dual;
Result: Test
select ltrim('12345Oracle', '0123456789') from dual;
Result: Oracle