Categories:
.NET (357)
C (330)
C++ (183)
CSS (84)
DBA (2)
General (7)
HTML (4)
Java (574)
JavaScript (106)
JSP (66)
Oracle (114)
Perl (46)
Perl (1)
PHP (1)
PL/SQL (1)
RSS (51)
Software QA (13)
SQL Server (1)
Windows (1)
XHTML (173)
Other Resources:
Can Sub Procedure/Function Be Called Recursively
Can Sub Procedure/Function Be Called Recursively? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions
✍: FYIcenter.com
PL/SQL allows sub procedures or functions to be called recursively. The tutorial example below shows you how to calculate factorial values with a recursive sub function:
SQL> CREATE OR REPLACE PROCEDURE FACTORIAL_TEST AS 2 FUNCTION FACTORIAL(N NUMBER) 3 RETURN NUMBER AS 4 BEGIN 5 IF N <= 1 THEN 6 RETURN 1; 7 ELSE 8 RETURN N*FACTORIAL(N-1); 9 END IF; 10 END; 11 BEGIN 12 DBMS_OUTPUT.PUT_LINE('3! = ' || 13 TO_CHAR(FACTORIAL(3))); 14 DBMS_OUTPUT.PUT_LINE('10! = ' || 15 TO_CHAR(FACTORIAL(10))); 16 DBMS_OUTPUT.PUT_LINE('64! = ' || 17 TO_CHAR(FACTORIAL(64))); 18 END; 19 / SQL> EXECUTE FACTORIAL_TEST; 3! = 6 10! = 3628800 64! = 126886932185884164103433389335161480802000000000000...
There must be something wrong with the FACTORIAL() definition that causes those many extra '0's in the '64!' result.
2007-04-25, 6248👍, 0💬
Popular Posts:
How To Get the Uploaded File Information in the Receiving PHP Script? Once the Web server received t...
How To Empty Your Recycle Bin? - Oracle DBA FAQ - Managing Oracle Database Tables If your recycle bi...
What is test metrics? Test metrics accomplish in analyzing the current level of maturity in testing ...
How To Enter Microseconds in SQL Statements? - MySQL FAQs - Introduction to SQL Date and Time Handli...
.NET INTERVIEW QUESTIONS - What is the difference between thread and process? A thread is a path of ...