How can we get stored procedure result in variable in SQL Server?
You can use the return statement inside a stored procedure to return an integer status code (and only of integer type). By convention a return value of zero is used for success. If no return is explicitly set, then the stored procedure returns zero. You should use the return value for status codes only.
How do I create a stored procedure variable in SQL Server?
Declaring a variable
The DECLARE statement initializes a variable by assigning it a name and a data type. The variable name must start with the @ sign. In this example, the data type of the @model_year variable is SMALLINT . By default, when a variable is declared, its value is set to NULL .
How do you store a return value of a stored procedure in a variable?
To see this yourself, execute any stored procedure from the object explorer, in SQL server management studio.
- 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.
How do I assign a SQL query result to a variable?
To assign a value to a variable, use the SET statement. This is the preferred method of assigning a value to a variable. A variable can also have a value assigned by being referenced in the select list of a SELECT statement.
What is used to invoke stored procedure?
The CallableStatement of JDBC API is used to call a stored procedure. A Callable statement can have output parameters, input parameters, or both.
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.
How do you set a variable in SQL?
Variables in SQL procedures are defined by using the DECLARE statement. Values can be assigned to variables using the SET statement or the SELECT INTO statement or as a default value when the variable is declared. Literals, expressions, the result of a query, and special register values can be assigned to variables.
How do you declare variables?
To declare (create) a variable, you will specify the type, leave at least one space, then the name for the variable and end the line with a semicolon ( ; ). Java uses the keyword int for integer, double for a floating point number (a double precision number), and boolean for a Boolean value (true or false).
Does stored procedure return value?
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.
Can we return table variable from stored procedure?
Every stored procedure can return an integer value known as the execution status value or return code. If you still want a table returned from the SP, you’ll either have to work the record set returned from a SELECT within the SP or tie into an OUTPUT variable that passes an XML datatype.
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.
How do I assign a dynamic query result to a variable in SQL Server?
Try using the below code:
- DECLARE @sqlCommand nvarchar(1000)
- DECLARE @city varchar(75)
- declare @counts int.
- SET @city = ‘New York’
- SET @sqlCommand = ‘SELECT @cnt=COUNT(*) FROM customers WHERE City = @city’
- EXECUTE sp_executesql @sqlCommand, N’@city nvarchar(75),@cnt int OUTPUT’, @city = @city, @cnt=@counts OUTPUT.
How do I assign a variable in MySQL?
MySQL variable assignment
There are two ways to assign a value to a user-defined variable. You can use either := or = as the assignment operator in the SET statement. For example, the statement assigns number 100 to the variable @counter. The second way to assign a value to a variable is to use the SELECT statement.
How do you pass dynamic parameters in SQL query?
How to Pass Parameters in Dynamic T-SQL Query
- Passing NULL. Pay an extra attention while passing variables with a NULL value. …
- Passing dates and times. The best format for passing dates is YYYYMMDD. …
- Passing strings. All string values are potentially dangerous code. …
- Lists of values in the IN clause. …
- Tricks of the trade.