[dba-SQLServer] ADOX help

Here's what I'm trying to do and can't -- I want to append a column to an
existing table, using ADOX. The code seems unnecessarily complex, and it
doesn't work. :( I don't get an error, it just doesn't work. The FOR loop
just runs through the Columns collection after the append, to see if it
worked. It really isn't part of the failing technique, because that part
works fine. The connection is fine. 

Susan H. 

'Append column to existing table
'using ADOX.
Dim cat As ADOX.Catalog
Dim tbl As ADOX.Table
Dim tblName As ADOX.Table
Dim col As ADOX.Column
Dim con As ADODB.Connection
Dim strConnection As String
con = New ADODB.Connection
strConnection = "Provider=SQLOLEDB.1;" & _
"Data Source=.\SQLEXPRESS;" & _
"Initial Catalog = AdventureWorks;" & _
"Trusted_Connection=Yes"
Debug.Print(strConnection)
con.Open(strConnection)
cat = New ADOX.Catalog
cat.ActiveConnection = con
tblName = New ADOX.Table
tblName.Name = "Department"
'With tblName.Columns
' .Append("DepartmentHead", ADOX.DataTypeEnum.adChar)
' .Refresh()
'End With
col = New ADOX.Column
With col
.Name = "DepartmentHead"
.Type = ADOX.DataTypeEnum.adChar
.DefinedSize = 20
.Attributes = ADOX.ColumnAttributesEnum.adColNullable
End With
tblName.Columns.Append(col)
tblName.Columns.Refresh()
tblName.ParentCatalog = cat
For Each tbl In cat.Tables
If tbl.Type = "TABLE" Then
If tbl.Name = tblName.Name Then
For Each col In tbl.Columns
Debug.Print(col.Name)
Next
End If
End If
Next 

-----Original Message-----
From: dba-sqlserver-bounces at databaseadvisors.com
[mailto:dba-sqlserver-bounces at databaseadvisors.com] On Behalf Of Susan
Harkins
Sent: Wednesday, March 08, 2006 1:31 PM
To: dba-sqlserver at databaseadvisors.com
Subject: Re: [dba-SQLServer] ADOX help

It looks like the SQL Server Users and Groups collections aren't supported
for ADOX -- anyone know for sure -- I may have misunderstood what I read. 

Susan H. 

Anybody here familiar with using ADOX and SQL Server and have some free time
today? I need help completing an article -- all I would need is a few
snippets of generic code -- but I need them today. Specifically, I'd like an
example of appending a column to an existing table or appending a new table
to a database. Also, I'd like a security example -- not as specific on it --
could be as simple as appending a new user to an existing group. 
 
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