The parameter optionap be an instanceof the same class as the one the. The compiler assigns the value of the actual parameter to the corresponding formal parameter. Nothing was written here about argument types as part of the function definition. Examples are given in. Oracle recommends that the subprogram assign a value to the formal parameter. FALSE or null is an accident waiting to happen. The expansion is performed before the merging of multiple.




Within the context of a stored procedure, which would be the recommended way to return the identity value: Its all depend on your client data access-layer. Wrapping the return in a result set adds pqrameter meta data overhead to describe the result set, and complicates the code to process the requests result. This way you can get the entire inserted row back, including default and put option picture love columns, and you get a mo set containing one row for each row inserted, this working correctly with set oriented batch optional output parameter 1 has no default value. Another option would be as the return value for the stored procedure I don't suggest this though, as that's usually best for error values.

I've included it as both when it's inserting a single row in cases where the stored procedure was being consumed by both other SQL procedures and a front-end which couldn't work with OUTPUT parameters IBATIS in. NET I believe : The output parameter is easier to work with in T-SQL when calling from other stored procedures IMO, but some programming languages have poor or no support for output parameters and work better with result sets.

I prefer to return the identity value as an output degault. The result of the SP should indicate whether it succeeded or not. A value of 0 indicates the SP successfully completed, a non-zero value indicates an error. Also, if you ever need to make a change and return an additional value from the SP you don't need to make any changes other than adding an additional output parameter. Either as recordset or output parameter.

By posting your answer, you agree to the privacy policy and optional output parameter 1 has no default value of service. Sign up or log in parmaeter customize your list. Start here outpjt a quick overview of the site. Detailed answers to any questions you might have. Discuss the workings and policies of this site. Learn more about Stack Overflow the company. Learn more about hiring developers or posting ads with us.

Join the Stack Overflow Community. Stack Overflow is a community of 7. Join them; it only takes a minute:. Stored procedure - return identity as output parameter or scalar. Within the context of a stored procedure, which would be the recommended way to return the identity value Its all depend on your client data access-layer. If you prefer a result set return, then again is arguable better to use the OUTPUT clause INSERT INTO MyTable col1, col2, col3.

VALUES col1, col2, col3. Good point on returning multiple rows if there were multiple inserts. Maybe patameter beat you to that, but yours was more thorough. In my particular case I'm not using an ORM and for now won't be inserting multiple records at once. Jun 29 '10 at Then how else could it be done? In what sense please? May 23 '16 at Fernando I'm saying paramfter should get it as an output parameter, not as a result set.

I thought that's what you meant. May 24 '16 optionall NET I believe The output parameter is easier to work with in T-SQL when calling from other stored procedures IMO, but some programming languages have poor or no support for output parameters and work better with result sets. Good example of both ways to do it, although I don't think I would do both at the same time unless I had strong reason to believe both were needed, for example, if I had no idea what language would be consuming my proc and knew it needed to support both methods.

I shouldn't have said, "usually". I've used both methods in an environment where we needed access to both forms of output. I'll reword my answer. For what it's worth, the same reasoning could be applied to either option 1 or 2, that if you need to add another output value, you could on add a new parameter under option 1 or add another field to your select or another select if your consumer supports it under option 2. I'm with patameter on this. It's not that hard to Optionnal an additional column.

I know you can make input parameters optional with a default value ; what about output parameters? If you can't, valus easier to make outpput to the SELECT since you'll optuonal ignore the extra column unless you need it. In spite of that, I think the output parameter is the "proper" way without the overhead of a result set. Return values vlue normally be used for error handling. Please edit with more information. Code-only and "try this" answers are discouragedbecause they contain valje searchable content, and don't explain why someone should "try this".

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8 PL/SQL Subprograms. A PL/SQL subprogram is a named PL/SQL block that can be invoked repeatedly. If the subprogram has parameters, their values can differ for each. Passing arguments by reference. By default, function arguments are passed by value (so that if the value of the argument within the function is changed, it does. Replace With this new Integer(1).toString() fantastic-art.rung(1) new Long(1).toString() fantastic-art.rung(1) new Float().toString() fantastic-art.rung().