There are three ways of returning data from a procedure to a calling program: result sets, output parameters, and return codes. This topic provides information on the three approaches. For large result sets, the stored procedure execution will not continue to the next statement until the result set has been completely sent to the client. For small result sets, the results will be spooled for return to the client and execution will continue. If multiple such SELECT statements are run during the execution of the stored procedure, multiple result sets will be sent to the client.
If you specify the OUTPUT keyword for a parameter in the procedure definition, the procedure can return the current value of the parameter to the calling program when the procedure exits. To save the value of the parameter in a variable that can be used in the calling program, the calling program must use the OUTPUT keyword when executing the procedure. The following example shows a procedure with an input and an output parameter.
The SalesPerson parameter would receive an input value specified by the calling program. The following example calls the procedure created in the first example and saves the output value returned from the called procedure in the SalesYTD variable, which is local to the calling program.
This allows the procedure to receive a value from the calling program, change or perform operations with the value, and then return the new value to the calling program. Then in the procedure body, the value could be used for calculations that generate a new value. This is often referred to as "pass-by-reference capability.
No error is returned, but you cannot use the output value in the calling program. The following rules pertain to cursor output parameters when the procedure is executed:. For a forward-only cursor, the rows returned in the cursor's result set are only those rows at and beyond the position of the cursor at the conclusion of the procedure execution, for example:. The result set RS returned to the caller consists of rows from 6 through of RS, and the cursor in the caller is positioned before the first row of RS.
For a forward-only cursor, if the cursor is positioned before the first row when the procedure exits, the entire result set is returned to the calling batch, procedure, or trigger. When returned, the cursor position is set before the first row.
For a forward-only cursor, if the cursor is positioned beyond the end of the last row when the procedure exits, an empty result set is returned to the calling batch, procedure, or trigger.
For a scrollable cursor, all the rows in the result set are returned to the calling batch, procedure, or trigger when the procedure exits. When returned, the cursor position is left at the position of the last fetch executed in the procedure. For any type of cursor, if the cursor is closed, then a null value is passed back to the calling batch, procedure, or trigger. This will also be the case if a cursor is assigned to a parameter, but that cursor is never opened. The closed state matters only at return time.
Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. It only takes a minute to sign up. If I understand correctly, you are trying to consume an existing procedure that has a return value.
This can be done in another procedure, package, or function, but the simplest method is using a block. In the declare section you define the variables that will receive the values and then use those in the call to the procedure. If you are the one who writes the procedure, you might want to make it a function instead.
If you need a program that changes something delete content, create new structures and so onit should be a procedure. However, if the main purpose is getting a return value selecting data, getting results for calculations etcit should be a function. Sign up to join this community. The best answers are voted up and rise to the top.
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How to get return value from pl sql procedure and assign it to variable? Ask Question. Asked 4 years, 3 months ago. Active 1 month ago. Viewed 50k times. Code: execute x. How to get return value from this proc and assign it to variable? Julien Vavasseur 9, 2 2 gold badges 20 20 silver badges 39 39 bronze badges.
Serdar Serdar 31 1 1 gold badge 1 1 silver badge 2 2 bronze badges. Active Oldest Votes. Julien Vavasseur Julien Vavasseur 9, 2 2 gold badges 20 20 silver badges 39 39 bronze badges.
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Leigh Riffel Leigh Riffel 23k 15 15 gold badges 72 72 silver badges bronze badges. Otherwise, looks good. Wrap your SQL into anonymous block, e. Vasilii Chernov Vasilii Chernov 9 4 4 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.Lee dong wook
Podcast Cryptocurrency-Based Life Forms. Q2 Community Roadmap. Featured on Meta.Stored Procedure and Function Calls SQLJ provides convenient syntax for calling stored procedures and stored functions in the database, as described immediately below. A stored function requires a result expression in your SQLJ executable statement to accept the return value and can optionally take input, output, or input-output parameters as well. A stored procedure does not have a return value but can optionally take input, output, or input-output parameters.
A stored procedure can return output through any output or input-output parameter. Stored procedures do not have a return value but can take a list with input, output, and input-output parameters. Stored procedure calls use the CALL token, as shown below. The word "CALL" is followed by a space and then the procedure call.
There must be a space after the CALL token to differentiate it from the procedure name. There cannot be a set of outer parentheses around the procedure call this differs from the syntax for function calls, as explained in "Calling Stored Functions". PROC is the name of the stored procedure, which can optionally take a list of input, output, and input-output parameters. Additionally, the types of the host variables you use in the parameter list must be compatible with the parameter types of the stored procedure.
Note: If you want your application to be compatible with Oracle7, do not include empty parentheses for the parameter list if the procedure takes no parameters. Stored functions have a return value and can also take a list of input, output, and input-output parameters. In standard SQLJ, the function call must be enclosed in a set of outer parentheses, as shown.
When using the outer parentheses, it does not matter if there is a space between the VALUES token and the begin-parenthesis. Where result is the result expression, which takes the function return value.
FUNC is the name of the stored function, which can optionally take a list of input, output, and input-output parameters. Referring back to the example in "Calling Stored Procedures"consider defining the stored procedure as a stored function instead, as follows:.
The result expression must have a type that is compatible with the return type of the function. For stored function calls, as with stored procedures, you must use the host expression tokens IN optional--defaultOUTand INOUT appropriately to match the input, output, and input-output parameters of the stored function.
Additionally, the types of the host variables you use in the parameter list must be compatible with the parameter types of the stored function. Notes: If you want your stored function to be portable to non-Oracle environments, then you should use only input parameters in the calling sequence, not output or input-output parameters. If you want your application to be compatible with Oracle7, then do not include empty parentheses for the parameter list if the function takes no parameters.
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. What you have there is technically not a procedurebut a function -- the difference being that a procedure does not have a return value and cannot be used as the right-hand-side of an assignment statement.Matco tool box wheels
In this case I would make it a procedure with two OUT parameters. Generally people don't like functions that also have OUT parameters, as it violates the usual expectations.
Benoit's answer shows this method. Learn more. Asked 8 years, 1 month ago.
Active 6 years, 2 months ago. Viewed 72k times. How can I do? But maybe you would like to use procedures? My SP will return two value. That's why I don't know how to get those two return value from my SP.
Maybe you need an array as a return value? Active Oldest Votes. You can modify them locally but caller won't see it -- IN OUT arguments: initialized by caller, already have a value, you can modify them and the caller will see it -- OUT arguments: they're reinitialized by the procedure, the caller will see the final value.G1000 flight plan entry
Benoit Benoit You basically have two options: 1 Use OUT parameters. Dave Costa Dave Costa Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.
Return Data from a Stored Procedure
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. As you have defined two variables in your example:. Just assign the return values to the out parameters i. What I mean here is: when you call the stored procedure, you will be passing those two variables as well.
After the stored procedure call, the variables will be populated with return values. Please note that in case, you would be able to return only one variable as return variable. When you use Return inside a procedure, the control is transferred to the calling program which calls the procedure. It is like an exit in loops. Learn more. Ask Question. Asked 7 years, 5 months ago.
Active 2 years, 4 months ago. Viewed 96k times. Active Oldest Votes. Yogendra Singh Yogendra Singh What is the question now? That is the way you work with procedures and better part of using procedure over function is: you may have more than one outputs.
Only demerit is that you may not use procedure as inline function in some query. Vaibhav Desai Vaibhav Desai 2, 12 12 silver badges 16 16 bronze badges. You can modify them locally but caller won't see it -- IN OUT arguments: initialized by caller, already have a value, you can modify them and the caller will see it -- OUT arguments: they're reinitialized by the procedure, the caller will see the final value.Vitamins to prevent cold sores
It is possible. It won't return any value.
Manisundaram R Manisundaram R 21 1 1 bronze badge. Baby Groot 4, 12 12 gold badges 48 48 silver badges 66 66 bronze badges. Sign up or log in Sign up using Google.You already know how to interact with the database using SQL, but it is not sufficient for building enterprise applications. While standalone procedures and functions are invaluable for testing pieces of program logic, Oracle recommends that you place all your code inside a package.
Packages are easier to port to another system, and have the additional benefit of qualifying the names of your program units with the package name. For example, if you developed a schema-level procedure called continue in a previous version of Oracle Database, your code would not compile when you port it to a newer Oracle Database installation.
This next section of this chapter is "Creating and Using Standalone Procedures and Functions"shows you how to create and use standalone procedures and functions. You may wish to skip it and move directly to "Creating and Using Packages". With Oracle Database, you can store programs in the database, so commonly used code can be written and tested once and then accessed by any application that requires it.
Program units that reside in the database also ensure that when the code is invoked the data is processed consistently, which leads to ease and consistency of the application development process. Schema-level, or standalone subprograms such as functions which return a value and procedures which do not return a value are compiled and stored in an Oracle Database.
Once compiled, they become stored procedure or stored function schema objects, and can be referenced or called by any applications connected to Oracle Database.
At invocation, both stored procedures and functions can accept parameters. This part is optional. This part is mandatory. Note also that each stored program unit has a header that names the unit and identifies it as either a function, procedure, or a package. The general form of these statements follows. Ensure that Schema is set to HR. In the Parameters tab, click the Add Column icon 'plus' sign and specify the first parameter of the procedure. Note that the tile of the pane is in italic font, which indicates that the procedure is not saved in the database.
From the File menu, select Save to save the new procedures. Note that Oracle Database automatically compiles procedures prior to saving them. From the File menu, select Save to save the new function. You already created a new procedure and a new function. However, they both consist of only the subprogram signature. In this section, you will edit a subprogram body. The new code is in bold font.
Select Run. Oracle Database SQL Language Reference for information on the system privileges users need to run procedures and functions. In the preceding section, you created and tested procedures and functions that were schema objects. This approach can be useful for testing subsets or small features of your application. Enterprise level applications have much greater complexity: some of the interfaces and types are directly available to user, while others are used only by ohter functions and procedures and are never called by the user.
Encapsulating these elements inside a package also prevents, over the life time of the applications, unintended consequences such as name capture that is discussed in "Overview of Stored Procedures". Procedures and functions that are defined within a package are known as packaged subprograms. Packages usually have two parts: a specification and a body. The package is defined by the package specificationwhich declares the types, variables, constants, exceptions, cursors, functions and procedures that can be referenced from outside of the package.Last post Aug 13, AM by rogeriobg.
I would want to know. Use cursors to select the results from the table and then return that cursor in stored procedure as a out parameter. Use data set to catch the resulted output from the stored procedure and then bind with the data grid. NET 1. NET or C? I think you may aware of this. Thank you for your reply. I had been using this approach for quiet some time now but there is a question which is striking in my mind:.
How is the ref cursor clsoed? Is it being handled automatically or do we have to write any code to close the cursor explicitly. I know this post is old, but maybe there's someone out there who can help me I'm using stored procedures from Oracle for first time with asp. Let's explain with some code.
I have this package:.
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Then the code in my ASP. NET page in VB. NET is the next one:.Oracle tutorial : How to get resultset from Oracle Stored Procedure (sys_refcursor)
Add "param2"OracleType. LongVarChar, 8. Get "param2". Cursor, ParameterDirection. So the question is
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