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:
What Are Named Parameters
What Are Named Parameters? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions
✍: FYIcenter.com
Named parameters are actual parameters specified not by position but by providing formal parameter names when calling the procedure or function. The main advantage of named parameters is that the caller don't have to remember the position of each parameter. But the caller have to remember the formal parameter names. The script below illustrates how to use named parameters:
SQL> CREATE OR REPLACE PROCEDURE SWAP_TEST AS 2 A NUMBER := 3; 3 B NUMBER := 8; 4 PROCEDURE MY_SWAP(X IN OUT NUMBER,Y IN OUT NUMBER) AS 5 T NUMBER; 6 BEGIN 7 T := X; 8 X := Y; 9 Y := T; 10 END MY_SWAP; 11 BEGIN 12 MY_SWAP(Y=>B, X=>A); -- same as (X=>A, Y=B), OR (A,B) 13 DBMS_OUTPUT.PUT_LINE('A = ' || TO_CHAR(A)); 14 DBMS_OUTPUT.PUT_LINE('B = ' || TO_CHAR(B)); 15 END; 16 / SQL> EXECUTE SWAP_TEST; A = 8 B = 3
2007-04-21, 6660👍, 0💬
Popular Posts:
Can you tell me how to check whether a linked list is circular? Create two pointers, and set both to...
What is the main difference between a Vector and an ArrayList? Java Vector class is internally synch...
How To Assign Query Results to Variables? - Oracle DBA FAQ - Working with Database Objects in PL/SQL...
How do you target a specific frame from a hyperlink? Include the name of the frame in the target att...
The object that contains all the properties and methods for every ASP.NET page, that is built is .. ...