2.3. Compare - Compare functions
Several operators and functions support comparing strings.
Functions
- compare - Compares this string data with data of another specified string.
 - operator!= - Are string values different
 - operator< - Is left operand lower than right operand
 - operator<= - Is left operand lower or equal
 - operator== - Are string values equal
 - operator> - Is left operand greater than right operand
 - operator>= - Is left operand greater or equal
 

