Home » Microsoft » 70-469 » What should you create?
You have a Microsoft SQL Azure database named DBAzurel. DBAzurel contains a table named Orders that stores sales data.
Each order has a sales total that can only be discovered by querying multiple tables.
You need to ensure that the value of the sales total is returned by executing a query on Orders.
What should you create?
A. A calculated column that uses a scalar function
B. A trigger that uses a table-valued function
C. A calculated column that uses a table-valued function
D. A trigger that uses a ranking function
Correct Answer: C
Explanation/Reference:
A table-valued parameter is scoped to the stored procedure, function, or dynamic Transact-SQL text, exactly like other parameters. Similarly, a variable of table type has scope like any other local variable that is created by using a DECLARE statement. You can declare table-valued variables within dynamic Transact-SQL statements and pass these variables as table-valued parameters to stored procedures and functions.
Table-valued parameters offer more flexibility and in some cases better performance than temporary tables or other ways to pass a list of parameters.
Incorrect:
Not A: A scalar function would only be able to use other columns from the same table.
