SQL ASCII function is used to return ASCII code of a character, if the parameter is a string, it will return the ASCII code of the most left character.
SQL ASCII Function Syntax
ASCII(character-expression)
SQL ASCII Function Example
SELECT ASCII('S') -- Value: 83
SELECT ASCII('Q') -- Value: 81
SELECT ASCII('L') -- Value: 76
SELECT ASCII('-') -- Value: 45
SELECT ASCII('Statements') -- Value: 83