请问高手: 能否用代码建立表之间的各种关系?

beibeijia

请问高手: 能否用代码建立表之间的各种关系?

不知可否用代码实现如下功能？

1、删除原有表之间的关系。

2、建立新的关系。


谢谢指点……

大頭

APPEND 語法
ADO
Sub CreateRelation()
    Dim cat As ADOX.Catalog
    Dim tbl As ADOX.Table
    Dim fk As ADOX.Key
   
    Set cat = New ADOX.Catalog
    cat.ActiveConnection = CurrentProject.Connection
   
    Set tbl = cat.Tables("tblPeople")
   
    Set fk = New ADOX.Key
    fk.Name = "eopleFood"
    fk.Type = adKeyForeign
    fk.RelatedTable = "tblFoods"
   
    fk.Columns.Append "FoodId"
    fk.Columns("FoodID").RelatedColumn = "FoodID"
    tbl.Keys.Append fk
        
    Set cat = Nothing
    Set tbl = Nothing
    Set fk = Nothing
End Sub

DOA
Sub CreateRelation()
    Dim db As Database
    Dim rel As Relation
    Dim fld As Field
   
    Set db = CurrentDb
    Set rel = db.CreateRelation()
   
    With rel
        .Name = "eopleFood"
        .Table = "tblFoods"
        .ForeignTable = "tblPeople"
        .Attributes = dbRelationDeleteCascade
    End With
   
    Set fld = rel.CreateField("FoodID")
    fld.ForeignName = "FoodID"
    rel.Fields.Append fld
    db.Relations.Append rel
End Sub

[此贴子已经被作者于2004-1-29 20:19:37编辑过]