Char Functions Oracle PLSQL

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  4. ASCII() returns the numeric value of the leftmost character of the string
SQL>
Syntax: ASCII()
SQL>
SQL>
SQL> SELECT
  2     ASCII('A')   uppercase_a,
  3     ASCII('abc') lowercase_a from dual;
UPPERCASE_A LOWERCASE_A
----------- -----------
      65.00       97.00
SQL>
SQL>