Performing Catalog Operations

To execute a command to modify a database or catalog, such as the CREATE TABLE or CREATE PROCEDURE statement, create a Command object using the appropriate SQL statements and a Connection object. Execute the command with the ExecuteNonQuery method of the Command object.

The following code example creates a stored procedure in a Microsoft SQL Server database.

' Assumes connection is a valid SqlConnection.
Dim queryString As String = "CREATE PROCEDURE InsertCategory " & _
    "@CategoryName nchar(15), " & _
    "@Identity int OUT " & _
    "AS " & _
    "INSERT INTO Categories (CategoryName) VALUES(@CategoryName) " & _
    "SET @Identity = @@Identity " & _
    "RETURN @@ROWCOUNT"

Dim command As SqlCommand = New SqlCommand(queryString, connection)
command.ExecuteNonQuery()

// Assumes connection is a valid SqlConnection.
string queryString = "CREATE PROCEDURE InsertCategory  " +
    "@CategoryName nchar(15), " +
    "@Identity int OUT " +
    "AS " +
    "INSERT INTO Categories (CategoryName) VALUES(@CategoryName) " +
    "SET @Identity = @@Identity " +
    "RETURN @@ROWCOUNT";

SqlCommand command = new SqlCommand(queryString, connection);
command.ExecuteNonQuery();

See also

• Using Commands to Modify Data
• Commands and Parameters
• ADO.NET Overview