Categories:
.NET (961)
C (387)
C++ (185)
CSS (84)
DBA (8)
General (31)
HTML (48)
Java (641)
JavaScript (220)
JSP (109)
JUnit (31)
MySQL (297)
Networking (10)
Oracle (562)
Perl (48)
Perl (9)
PHP (259)
PL/SQL (140)
RSS (51)
Software QA (28)
SQL Server (5)
Struts (20)
Unix (2)
Windows (3)
XHTML (199)
XML (59)
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, 6387👍, 0💬
Popular Posts:
From performance point of view how do they rate ? Repeater is fastest followed by Datalist and final...
If we have two version of same assembly in GAC how do we make a choice ? OK first let’s try to under...
What will be printed as the result of the operation below: #define swap(a,b) a=a+b;b=a-b;a=a-b; void...
What will be printed as the resultof the operation below: int x; int modifyvalue() { return(x+=10); ...
What print out will the folloging code produce? main() { char *p1=“name”; char *p2; p2=(char*)malloc...