Oracle PL/SQL Tutorial/PL SQL Programming/TO NUMBER

TO_CHAR(n2,"$9G999D99")

SQL>
SQL> SET SERVEROUTPUT ON
SQL> DECLARE
  2    d1    DATE;
  3    d2    DATE;
  4    d3    DATE;
  5    d4    DATE;
  6    n1    NUMBER;
  7    n2    NUMBER;
  8    n3    NUMBER;
  9   BEGIN
 10    n2 := TO_NUMBER ("$1,235.95","$9G999D99");
 11
 12    DBMS_OUTPUT.PUT_LINE("n2 = " || TO_CHAR(n2,"$9G999D99"));
 13
 14  END;
 15  /
n2 =  $1,235.95
PL/SQL procedure successfully completed.
SQL>
SQL>

TO_NUMBER ("$1,235.95","$9G999D99")

SQL> SET SERVEROUTPUT ON
SQL> DECLARE
  2    d1    DATE;
  3    d2    DATE;
  4    d3    DATE;
  5    d4    DATE;
  6    n1    NUMBER;
  7    n2    NUMBER;
  8    n3    NUMBER;
  9   BEGIN
 10    n2 := TO_NUMBER ("$1,235.95","$9G999D99");
 11
 12    DBMS_OUTPUT.PUT_LINE("n2 = " || TO_CHAR(n2,"$9G999D99"));
 13
 14  END;
 15  /
n2 =  $1,235.95
PL/SQL procedure successfully completed.
SQL>
SQL>

TO_NUMBER ("123.99","999D99")

SQL>
SQL> SET SERVEROUTPUT ON
SQL> DECLARE
  2    d1    DATE;
  3    d2    DATE;
  4    d3    DATE;
  5    d4    DATE;
  6    n1    NUMBER;
  7    n2    NUMBER;
  8    n3    NUMBER;
  9   BEGIN
 10    n1 := TO_NUMBER ("123.99","999D99");
 11
 12    DBMS_OUTPUT.PUT_LINE("n1 = " || TO_CHAR(n1,"999D99"));
 13
 14  END;
 15  /
n1 =  123.99
PL/SQL procedure successfully completed.