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70-516 · Question #238

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. You create a stored procedure to insert a new record in the Categories table according to following code…

The correct answer is C. Insert the following code segment at line 11. Input-The parameter is an input parameter. InputOutput-The parameter is capable of both input and output. Output-The parameter is an output parameter. ReturnValue-The parameter represents a return value from an operation such as a stored procedure, builtin function, or…

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Question

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. You create a stored procedure to insert a new record in the Categories table according to following code segment. CREATE PROCEDURE dbo.InsertCategory @CategoryName nvarchar(15), @Identity int OUT AS INSERT INTO Categories (CategoryName) VALUES(@CategoryName) SET @Identity = SCOPE_IDENTITY() RETURN @@ROWCOUNT You write the following code segment. (Line numbers are included for reference only). 01 private static void ReturnIdentity(string connectionString) 02 { 03 using (SqlConnection connection = new SqlConnection(connectionString)) 04 { 05 SqlDataAdapter adapter = new SqlDataAdapter( 06 "SELECT CategoryID, CategoryName FROM dbo.Categories",connection); 07 adapter.InsertCommand = new SqlCommand("InsertCategory", connection); 08 adapter.InsertCommand.CommandType = CommandType.StoredProcedure; 09 SqlParameter rowcountParameter = adapter.InsertCommand.Parameters.Add( 10 "@RowCount", SqlDbType.Int); 12 adapter.InsertCommand.Parameters.Add( 13 "@CategoryName", SqlDbType.NChar, 15, "CategoryName"); 14 SqlParameter identityParameter = adapter.InsertCommand.Parameters.Add( 15 "@Identity", SqlDbType.Int, 0, "CategoryID"); 17 DataTable categories = new DataTable(); 18 adapter.Fill(categories); 19 DataRow categoryRow = categories.NewRow(); 20 categoryRow["CategoryName"] = "New Beverages"; 21 categories.Rows.Add(categoryRow); 22 adapter.Update(categories); 23 Int32 rowCount = (Int32)adapter.InsertCommand.Parameters["@RowCount"].Value; 24 } 25 } You need to retrieve the identity of the new record. You also need to retrieve the row count. What should you do?

Options

  • AInsert the following code segment at line 11.
  • BInsert the following code segment at line 11.
  • CInsert the following code segment at line 11.
  • DInsert the following code segment at line 11.

How the community answered

(24 responses)
  • A
    4% (1)
  • B
    4% (1)
  • C
    83% (20)
  • D
    8% (2)

Explanation

Input-The parameter is an input parameter. InputOutput-The parameter is capable of both input and output. Output-The parameter is an output parameter. ReturnValue-The parameter represents a return value from an operation such as a stored procedure, builtin function, or user-defined function. ParameterDirection Enumeration

Topics

#stored procedures#OUTPUT parameters#SCOPE_IDENTITY#SqlCommand

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