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Answer Posted / m.r.nataraajhan
You use Recordset objects to manipulate data from a
provider. When you use ADO, you manipulate data almost
entirely using Recordset objects. All Recordset objects
consist of records (rows) and fields (columns). Depending
on the functionality supported by the provider, some
Recordset methods or properties may not be available.
ADODB.Recordset is the ProgID that should be used to create
a Recordset object. Existing applications that reference
the outdated ADOR.Recordset ProgID will continue to work
without recompiling, but new development should reference
ADODB.Recordset.
There are four different cursor types defined in ADO:
Dynamic cursor Allows you to view additions, changes,
and deletions by other users; allows all types of movement
through the Recordset that doesn't rely on bookmarks; and
allows bookmarks if the provider supports them.
Keyset cursor Behaves like a dynamic cursor, except
that it prevents you from seeing records that other users
add, and prevents access to records that other users
delete. Data changes by other users will still be visible.
It always supports bookmarks and therefore allows all types
of movement through the Recordset.
Static cursor Provides a static copy of a set of
records for you to use to find data or generate reports;
always allows bookmarks and therefore allows all types of
movement through the Recordset. Additions, changes, or
deletions by other users will not be visible. This is the
only type of cursor allowed when you open a client-side
Recordset object.
Forward-only cursor Allows you to only scroll forward
through the Recordset. Additions, changes, or deletions by
other users will not be visible. This improves performance
in situations where you need to make only a single pass
through a Recordset.
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