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4GuysFromRolla.com : ASP FAQS : Databases, General


How can I get all Field Names or Column Names from a recordset or database table ? ..or.. How can I write a general "table dump" for all records and fields in a recordset or table?

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Answer: This question has been answered many, many times in many, many places, and I'm not going to go into a long winded explanation, since some of the other pages and sites do such a good job of it.

But for those who want a quick and dirty answer...

The first For...Next loop below shows how to get the names of the fields from the recordset (and you simply ask for all fields in a table in your SQL clause to show all the fields in a given table).

The Do...Loop and second For...Next show how to get all the values for all the fields in all records.

Set conn = Server.CreateObject("ADODB.Connection")
conn.Open "... put your connection string here ..."

Set RS = Server.CreateObject("ADODB.RecordSet")
RS.Open "... put your tablename *or* SQL statement here ...", conn

Response.Write "<TABLE Border=1 CellPadding=5>" & vbNewLIne
Response.Write "<TR>" & vbNewLine
' RS.Fields is the collection of fields associated with the recordset...
' The count given is correct, but since the fields are numbered
' starting at zero, we have to subtract one to get the maximal field number:
For fnum = 0 To RS.Fields.Count-1
    ' Naturally, each element in the Fields collection is
    ' an ADODB.Field object. And the Field object has various
    ' properties, including...ta da!...its Name:
    Response.Write "<TH>" & RS.Fields(fnum).Name & "</TH>" & vbNewLine
Response.Write "</TR>" & vbNewLine

' Then, if you want to also DUMP the entire table:
' You simply do all records until you reach the end (EOF):
Do Until RS.EOF
    ' The logic here is the same as for displaying the
    ' field names, but now we do the values for one record...
    Response.Write "<TR>" & vbNewLine
    For fnum = 0 To RS.Fields.Count-1
        ' again, one of the ADODB.Field properties is Value, so...
        Response.Write "<TD>" & RS.Fields(fnum).Value & "</TD>" & vbNewLine
    Response.Write "</TR>" & vbNewLine
Response.Write "</TABLE>" & vbNewLine


Quick and dirty. Just plug in your connection string and your table name (or SQL query) and it's ready to use.

FAQ posted by Bill Wilkinson at 10/2/2001 3:52:01 PM to the Databases, General category. This FAQ has been viewed 61,000 times.

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