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What is the return value of a Transact-SQL function?
Is the return value of a scalar user-defined function. For Transact-SQL functions, all data types, including CLR user-defined types, are allowed except the timestamp data type. For CLR functions, all data types, including CLR user-defined types, are allowed except the text, ntext, image, and timestamp data types.
How to create function to return VARCHAR2 / numbers?
My code so far is CREATE OR REPLACE FUNCTION studentName ( f_name IN VARCHAR2) RETURN IS v_test students%rowtype; CURSOR c1 IS SELECT * FROM students WHERE first_name = f_name; BEGIN OPEN c1; FETCH c1 INTO v_test; IF c1%notfound THEN v_test := NULL; END IF; CLOSE c1; RETURN v_test; END;
How to query a function in a table?
You query table functions by using the TABLE keyword before the function name in the FROM clause of the query. For example: SELECT * FROM TABLE ( function_name (…)) the database then returns rows as they are produced by the function.
How is the table return value defined in inline TVFs?
In inline TVFs, the TABLE return value is defined through a single SELECT statement. Inline functions do not have associated return variables.
How to create a user defined function in SQL Server?
Applies to: SQL Server (all supported versions) Azure SQL Database Azure SQL Managed Instance Creates a user-defined function. A user-defined function is a Transact-SQL or common language runtime (CLR) routine that accepts parameters, performs an action, such as a complex calculation, and returns the result of that action as a value.
Can a function in SQL Server not return a value?
You will need to use a stored procedure instead. According to SQL Server, you cant have a function without a return value. It has to return a value. In your case i would advise is to go for Stored procedure. Thanks for contributing an answer to Stack Overflow!
How to create a Transact SQL function in mstvfs?
In MSTVFs, function_body is a series of Transact-SQL statements that populate a TABLE return variable. Specifies the scalar value that the scalar function returns. Specifies that the return value of the table-valued function (TVF) is a table. Only constants and @ local_variables can be passed to TVFs.