I need to know how to delete access relationships from inside Visual basic and also how to set the relationships back to what they were. I tried using the Catalog object of the ADOX library but couldn't figure out how to do it. The reason I need this is because I want to allow the user to "download" a newer copy of tables stored locally on their PC. Thanks in advance for the help!
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Programmatically delete/.re-establish relationships from VB in Acess 1
- Thread starter Paladyr
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- Thread starter
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CodeHammer
Programmer
The following code is an example of how I add a 4 column relationship inside of an access database.
Set kyForeign = New ADOX.Key
Set cat = New ADOX.Catalog
cat.ActiveConnection = axCon
kyForeign.Name = "TickFactDT"
kyForeign.Type = adKeyForeign
kyForeign.RelatedTable = "Tickets"
kyForeign.Columns.Append "TicketID"
kyForeign.Columns("TicketID"
.RelatedColumn = "TicketID"
kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "DirectionType"
kyForeign.Columns("DirectionType".RelatedColumn = "DirectionType"
kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "TicketSeries"
kyForeign.Columns("TicketSeries".RelatedColumn = "TicketSeries"
kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "SeriesCatagory"
kyForeign.Columns("SeriesCatagory".RelatedColumn = "SeriesCatagory"
kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
cat.Tables("TicketFactorDT".Keys.Append kyForeign
Set kyForeign = Nothing
Set cat = Nothing
Removing the relationship is something I have not done in a long time, but I seem to remember it being even easier.
Set kyForeign = New ADOX.Key
Set cat = New ADOX.Catalog
cat.ActiveConnection = axCon
kyForeign.Name = "TickFactDT"
kyForeign.Type = adKeyForeign
kyForeign.RelatedTable = "Tickets"
kyForeign.Columns.Append "TicketID"
kyForeign.Columns("TicketID"
.RelatedColumn = "TicketID"kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "DirectionType"
kyForeign.Columns("DirectionType"
.RelatedColumn = "DirectionType"kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "TicketSeries"
kyForeign.Columns("TicketSeries"
.RelatedColumn = "TicketSeries"kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "SeriesCatagory"
kyForeign.Columns("SeriesCatagory"
.RelatedColumn = "SeriesCatagory"kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
cat.Tables("TicketFactorDT"
.Keys.Append kyForeignSet kyForeign = Nothing
Set cat = Nothing
Removing the relationship is something I have not done in a long time, but I seem to remember it being even easier.
CodeHammer
Programmer
The following code is an example of how I add a 4 column relationship inside of an access database.
Set kyForeign = New ADOX.Key
Set cat = New ADOX.Catalog
cat.ActiveConnection = axCon
kyForeign.Name = "TickFactDT"
kyForeign.Type = adKeyForeign
kyForeign.RelatedTable = "Tickets"
kyForeign.Columns.Append "TicketID"
kyForeign.Columns("TicketID".RelatedColumn = "TicketID"
kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "DirectionType"
kyForeign.Columns("DirectionType".RelatedColumn = "DirectionType"
kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "TicketSeries"
kyForeign.Columns("TicketSeries".RelatedColumn = "TicketSeries"
kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "SeriesCatagory"
kyForeign.Columns("SeriesCatagory".RelatedColumn = "SeriesCatagory"
kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
cat.Tables("TicketFactorDT".Keys.Append kyForeign
Set kyForeign = Nothing
Set cat = Nothing
Removing the relationship is something I have not done in a long time, but I seem to remember it being even easier.
Set kyForeign = New ADOX.Key
Set cat = New ADOX.Catalog
cat.ActiveConnection = axCon
kyForeign.Name = "TickFactDT"
kyForeign.Type = adKeyForeign
kyForeign.RelatedTable = "Tickets"
kyForeign.Columns.Append "TicketID"
kyForeign.Columns("TicketID"
.RelatedColumn = "TicketID"kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "DirectionType"
kyForeign.Columns("DirectionType"
.RelatedColumn = "DirectionType"kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "TicketSeries"
kyForeign.Columns("TicketSeries"
.RelatedColumn = "TicketSeries"kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
kyForeign.Columns.Append "SeriesCatagory"
kyForeign.Columns("SeriesCatagory"
.RelatedColumn = "SeriesCatagory"kyForeign.UpdateRule = adRICascade
kyForeign.DeleteRule = adRICascade
cat.Tables("TicketFactorDT"
.Keys.Append kyForeignSet kyForeign = Nothing
Set cat = Nothing
Removing the relationship is something I have not done in a long time, but I seem to remember it being even easier.
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