Question

Trying to construct a query in Access 2007. One of the columns has the data type “Memo”. Sometimes the latest version is returned and for others the display is blank. Only if I right-click and select “Show column history” on each row, can I actually see the full set of data in this column. Is there a way through the query designer or SQL that this data can be retrieved in it’s entirety?

Answer 1

Found the answer by defining a VBA function which returns the column history as a string. Then this function is used in the query “Field” value. Right click on “Field” cell in query builder and select “Build” from the right click menu. Here you can find the VBA function. The expression builder will look something like this:

Expr1: GetHistory([ID])

Here is the VBA function:

Public Function GetHistory(rowID As Integer) As String
    On Error Resume Next
    Dim sHistory As String
    sHistory = Application.ColumnHistory("Table Name", "Column Name", "ID=" + CStr(rowID))
    GetHistory = sHistory
End Function

Helpful reading:

• VBA Function in Query Example