How to retrieve stored procedure return value with Dapper?
- Right click on Solution ,find Manage NuGet Package manager and click on it.
- After as shown into the image and type in search box " dapper ".
- Select Dapper as shown into the image .
- Choose version of dapper library and click on install button.
How to send null value to a stored procedure?
CREATE PROCEDURE yourprocedure @date1 datetime. declare @newdate1 datetime. select @newdate1 = CASE @date1 WHEN '1950-01-01 00:00:00.000' THEN null ELSE @date1 END <Unmodified section of the SP that returns results based on a datetime parameter, or all results when the parameter is NULL> GO
Is it possible to use "return" in stored procedure?
When used with a stored procedure, RETURN cannot return a null value. If a procedure tries to return a null value (for example, using RETURN @status when @status is NULL), a warning message is generated and a value of 0 is returned.
How do I execute stored procedure?
- Result must be an entity type. This means that a stored procedure must return all the columns of the corresponding table of an entity.
- Result cannot contain related data. ...
- Insert, Update and Delete procedures cannot be mapped with the entity, so the SaveChanges method cannot call stored procedures for CUD operations.
Can stored procedure return string value?
You are placing your result in the RETURN value instead of in the passed @r value. (RETURN) Is the integer value that is returned. Stored procedures can return an integer value to a calling procedure or an application.Jun 23, 2011
How can a stored procedure return a value in SQL Server?
What is Return Value in SQL Server Stored Procedure?Right Click and select Execute Stored Procedure.If the procedure, expects parameters, provide the values and click OK.Along with the result that you expect, the stored procedure also returns a Return Value = 0.
Which type of procedure returns a value?
A Function procedure returns a value to the calling code either by executing a Return statement or by encountering an Exit Function or End Function statement.Sep 15, 2021
Can a stored procedure return an output value to its caller?
Return data using an output parameter. 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.Jan 28, 2022
Do functions return values?
A return is a value that a function returns to the calling script or function when it completes its task. A return value can be any one of the four variable types: handle, integer, object, or string. The type of value your function returns depends largely on the task it performs.
How many values can be returned from a stored procedure?
How many values can be returned from a given stored function? Explanation: In MySQL, the stored function cannot return multiple values. Instead, multiple stored functions can be written and invoked from within a single statement however, they are different from stored procedures. 3.
Why do we return Stored Procedures?
The RETURN statement is used to unconditionally and immediately terminate an SQL procedure by returning the flow of control to the caller of the stored procedure. It is mandatory that when the RETURN statement is executed that it return an integer value. If the return value is not provided, the default is 0.
Which procedure doesn't return any value?
A Sub procedure does not return a value to the calling code. You call it explicitly with a stand-alone calling statement.Sep 15, 2021
What is difference between stored procedure and function?
The function must return a value but in Stored Procedure it is optional. Even a procedure can return zero or n values. Functions can have only input parameters for it whereas Procedures can have input or output parameters. Functions can be called from Procedure whereas Procedures cannot be called from a Function.Sep 15, 2012
Can we call function from stored procedure?
A function can be called in a select statement as well as in a stored procedure. Since a function call would return a value we need to store the return value in a variable.Aug 20, 2019
How can we use stored procedure in SELECT statement?
SQL Server select from stored procedure with parametersFirst, create a stored procedure that uses multiple parameters to execute some task and return the result.Next, store the result returned by a stored procedure in a table variable.In the end, use the SELECT statement to fetch some data from the table variable.Jul 13, 2021
Can a stored procedure return multiple result sets SQL Server?
Stored procedures contain IN and OUT parameters or both. They may return result sets in case you use SELECT statements. Stored procedures can return multiple result sets.Apr 2, 2019
Introduction
In the modular programming approach, the independent parts of the codes can be divided into subprograms.
Pre-Requirments
In this article, we will use a sample table and the following query will help to create this table.
Return Value in SQL Server Stored Procedure
In default, when we execute a stored procedure in SQL Server, it returns an integer value and this value indicates the execution status of the stored procedure. The 0 value indicates, the procedure is completed successfully and the non-zero values indicate an error.
Changing Stored Procedure Return Value
We can change the return value inside the procedure code using the RETURN command. For example, the following stored procedure will return the record number of the SampleDepartments table.
Stored procedure OUTPUT parameters
We can define output parameters instead of the return value in the stored procedure and can assign several data types to it. For example, the following procedure returns all department names and also returns the maximum record date with the help of the @MaxRecordDate output parameter.
Try to return a NULL value in a stored procedure
In some cases, a NULL value can be assigned to the stored procedure return value when changing it. At this point, SQL Server automatically converts NULL values into 0. The example below describes a scenario similar to this.
Conclusion
In this article, we have learned to use stored procedure return values and also have learned how to use a stored procedure with an output parameter.
SQL Server stored procedure return value
There are mainly 3 methods through which we can return some values from a sql stored procedure to the caller of the procedure in sql server 2019. All the 3 methods are listed below.
SQL Server stored procedure return value data type
You might be talking about the data type of return codes in SQL Server stored procedure. The data type of a return code is always an integer. If you want to return other types of data, you have to use the output parameters. You cannot use the return codes in that case.
SQL Server stored procedure default return value
If you execute a stored procedure without returning any value, the stored procedure always returns a default value. If the execution of the stored procedure is successful, it returns 0 as the default return value. If the execution fails or stops because of an error, a non-zero value is returned as the default return value.
SQL Server stored procedure no return value
A SQL Server stored procedure always returns a value. Even if you do not specify a return value, the stored procedure will return the default return value.
SQL Server stored procedure return value 0
Till now, we have understood that whenever a procedure is executed, it returns an integer code. This integer code is called a return code, and it represents the execution status of any procedure.
SQL Server stored procedure return value -6
As discussed in the previous section, the return codes are used to indicate the execution status of a procedure. A 0 return code indicates the successful execution of the procedure in sql server, and any non-zero values indicate some error. Now, what if a stored procedure returns the negative value as a return code.
SQL Server stored procedure return value -4
In this section, we will try to understand the situation when a stored procedure returns -4 as a return code in sql server.
Return Values in SQL Stored Procedure Example 1
In this example, we will show you the default return value returned by the SQL Server. To demonstrate the same, let me execute the previously created Stored Procedure.
Return Values in SQL Stored Procedure Example 2
In this return value example, we will show how to use return values in Stored procedures. Please refer to the Select Stored Procedure article to write Select statement inside a stored procedure.
Stored Procedure return values Example 3
In this example, Let me show you what will happen If we return a String (Varchar) data as the return value. Here, we are selecting the Occupation of an employee whose last name is equal to Gateway. (Instead of hard coding a Value, you can also try Input Parameter ).
SQL Stored Procedures Benefits
A stored procedure is commonly used in SQL Server databases and provides the following benefits:
Examples of the SQL RETURN clause in Stored Procedures
To understand the problem, let’s create a stored procedure with the following script. For this demo, I am using the Azure SQL Database sample schema [SalesLT]. [Customer]
Examples of SQL Return Codes in Stored Procedures
In the previous example, we saw the primary use of the Return values in the SQL Server stored procedure. We can use these values to define the stored procedure logic and error handling.
SQL Output Clause in Stored Procedures
You can specify the OUTPUT keyword in the procedure definition for a parameter. If you specify it, the stored procedure returns the value of the current parameter when the SP executes. You can also save the output value in a variable as well.
Introduction
Return Value in SQL Server Stored Procedure
- In default, when we execute a stored procedure in SQL Server, it returns an integer value and this value indicates the execution status of the stored procedure. The 0 value indicates, the procedure is completed successfully and the non-zero values indicate an error. The following query will create a very simple stored procedure to get departments’ ...
Changing Stored Procedure Return Value
- We can change the return value inside the procedure code using the RETURN command. For example, the following stored procedure will return the record number of the SampleDepartments table. As we can see, the GetDepartmentRecord stored procedure return value has displayed the total row number of the SampleDepartments table because we assigned this value to it inside th…
Stored Procedure Output Parameters
- We can define output parameters instead of the return value in the stored procedure and can assign several data types to it. For example, the following procedure returns all department names and also returns the maximum record date with the help of the @MaxRecordDate output parameter. In the creation script of the GetDepartmentSalaryList procedure, we have defined an …
Try to Return A Null Value in A Stored Procedure
- In some cases, a NULL value can be assigned to the stored procedure return value when changing it. At this point, SQL Server automatically converts NULL values into 0. The example below describes a scenario similar to this. When we try to execute the GetDepartmentSalaryRange procedure for any parameter which is greater than 25000, the code logic does not enter the IF st…
Conclusion
- In this article, we have learned to use stored procedure return values and also have learned how to use a stored procedure with an output parameter.