سؤال في جملة openبالADO

adOpenForwardOnly

Provides a static copy of the records (you can't see additions, changes or deletions by other users). You can only move forward through the recordset. Forward-only is the ADO default cursor type.

adOpenStatic

Provides a static copy of the records (you can't see additions, changes or deletions by other users), but all types of movement are enabled.

adOpenDynamic

Dynamic requires more overhead, because updates are immediate and all types of movement are enabled. The dynamic cursor isn't currently supported by the Microsoft Jet OLE DB Provider, and therefore defaults to a keyset cursor when adOpenDynamic is applied to a Jet database.

adOpenDynamic

Similar to the dynaset recordset type and dynamic cursor, but the resulting recordset is based on a single table. Since the dynamic cursor type isn't currently supported by the Microsoft Jet OLE DB Provider, Jet defaults to a static cursor when you apply the adCmdTableDirect option.

adOpenKeyset

Existing records at time of creation are updateable. You can't see additions or deletions. All types of movement are enabled.

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