Parameter Modes 

To define the behavior of formal parameters you use the parameter modes. The 3 parameter modes, IN, OUT, & IN OUT, can be used with any subprogram. Though, avoid using the OUT and IN OUT modes with functions. The aim of a function is to take zero or more arguments and return a single value. To have a return function, multiple values is a bad programming practice. The functions should also be free from the side effects that change the values of variables not local to the subprogram. 

Posted Date: 10/5/2012 5:30:45 AM | Location : United States

Ask an Expert

Related Discussions:- Parameter modes, Assignment Help, Ask Question on Parameter modes, Get Answer, Expert's Help, Parameter modes Discussions

Write discussion on Parameter modes
Your posts are moderated

Write your message here..

Related Questions

Currval and nextval - sql pseudocolumns, CURRVAL and NEXTVAL The serie... CURRVAL and NEXTVAL The series is a schema object which generates the sequential numbers. Whenever you form a sequence, you can specify its primary value and an increment. T

Write a program to implement inverted file shown slider, Write a program to... Write a program to implement the inverted file shown in the slides (Simple Index file, LabelID file and Data file).  Use the Avail_List to point at the deleted Label IDs so that th

Read-only operator (+) - sql, Read-Only Operator (+) - SQL The term r... Read-Only Operator (+) - SQL The term read-only operator to the mathematical term function. Here I just need to add that the SQL standard reserves the term function for read-

Sql outer join, SQL outer join SELECT * FROM IS_CALLED NATURAL LEFT... SQL outer join SELECT * FROM IS_CALLED NATURAL LEFT JOIN IS_ENROLLED_ON Note that adding LEFT to an invocation of CROSS JOIN has no effect unless the right-hand operand

Query, ALTER TABLE bb_basketitem ADD CONSTRAINT bitems_qty_ck CHECK (quan... ALTER TABLE bb_basketitem ADD CONSTRAINT bitems_qty_ck CHECK (quantity BEGIN INSERT INTO bb_basketitem VALUES (88,8,10.8,21,16,2,3); END; Brewbean’s wants to add a check

Appgen to sap data export, We are seeking a freelance consultant that is fa... We are seeking a freelance consultant that is familiar with Appgen applications. We require exporting all our data into a format appropriate for importing into SAP Business One. Pl

Exit-when - iterative control, EXIT-WHEN The EXIT-WHEN statement permits... EXIT-WHEN The EXIT-WHEN statement permits a loop to complete conditionally. Whenever the EXIT statement is encountered, the condition in the WHEN clause is computed. When the co

Example of cast operator - sql, Example of Cast Operator So long as C... Example of Cast Operator So long as CAST is used as shown, we could obtain the total marks for each exam in similar fashion, using SUM (Mark) AS TotalMarks. However, this giv

Cursor variables as parameters, Cursor Variables As Parameters You can... Cursor Variables As Parameters You can declare the cursor variables as the formal parameters of the functions and procedures. In the illustration below, you define the REF CUR

Close statement in pl sql, CLOSE Statement The CLOSE statement allows ... CLOSE Statement The CLOSE statement allows the resources held by a cursor variable or open cursor to be reused. No more rows can be fetched from the cursor variable or closed