Alter Table Problem

Hi

I need to alter a SQLServer table. I use the following codeDim conn As SqlConnection

Dim comm As SqlCommandDim connectionString As String = ConfigurationManager.ConnectionStrings("juizonline").ConnectionString

conn = New SqlConnection(connectionString)comm = New SqlCommand("alter table problemas add teste varchar (25))", conn)

conn.Open()

comm.ExecuteNonQuery()

conn.Close()

But i get the error:
Incorrect syntax near ')'.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near ')'.

Source Error:





Line 85: comm = New SqlCommand("alter table problemas add teste varchar(25))", conn)
Line 86: conn.Open()
Line 87: comm.ExecuteNonQuery()
Line 88: conn.Close()
Line 89: End Sub

Any help?

Thank you