Retrieve list of indexes in an Access database

database, ms-access, ms-access-2007

Solution

You can examine `TableDef` objects to access the index names.

Public Sub ShowIndexNames()
    Dim tdf As TableDef
    Dim idx As Index
    Dim num_indexes As Long

On Error GoTo ErrorHandler

    For Each tdf In CurrentDb.TableDefs
        num_indexes = tdf.Indexes.Count
        If Left$(tdf.Name, 4) <> "MSys" Then
            If num_indexes > 0 Then
                For Each idx In tdf.Indexes
                    Debug.Print tdf.Name, idx.Name
                Next idx
            End If
         End If
    Next tdf

ExitHere:
    Exit Sub

ErrorHandler:
    Select Case Err.Number
    Case 3110
        'Could not read definitions; no read definitions '
        'permission for table or query '<Name>'. '
        Debug.Print "No read definitions permission for " _
            & tdf.Name
        num_indexes = 0
        Resume Next
    Case Else
        Debug.Print Err.Number & "-> " & Err.Description
        GoTo ExitHere
    End Select
End Sub

Edit: Revised the sub to ignore MSys* (Access system) tables.

You could also use ADO's `OpenSchema` method to retrieve information about indexes. The code below lists the index name, associated table, and whether the index is the primary key. I wrote it to use late binding for ADO because that doesn't require setting the reference for Microsoft ActiveX Data Objects [version] Library.

Const adSchemaIndexes As Long = 12
Dim cn As Object ' ADODB.Connection
Dim rs As Object ' ADODB.Recordset
Dim i As Long

Set cn = CurrentProject.Connection
Set rs = cn.OpenSchema(adSchemaIndexes)
With rs
    ' enable next three lines to view all the recordset column names
'    For i = 0 To (.Fields.Count - 1)
'        Debug.Print .Fields(i).Name
'    Next i
    Do While Not .EOF
       Debug.Print !TABLE_NAME, !INDEX_NAME, !PRIMARY_KEY
       .MoveNext
    Loop
    .Close
End With
Set rs = Nothing
Set cn = Nothing

If you prefer to examine indexes for a single table rather than for every table in the db, pass the table name as the fifth element of an array.

Set rs = cn.OpenSchema(adSchemaIndexes, Array(Empty, Empty, Empty, Empty, "tblFoo"))

Problem

I know there's a way to get a list of all tables in an Access database by using the quering the MsysObjects: ``` SELECT MSysObjects.Name FROM MsysObjects WHERE Left$([Name],1)<>'~' AND Left$([Name],4)<>'Msys' AND MSysObjects.Type=1 ``` Does anybody know a similar (or other) way to retrieve a list of all indexes in an MS-Access database?

Original source