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HP provides the family of DataDirect Technologies software
products on Tru64 UNIX to enable ODBC connectivity for your
applications on Tru64 UNIX and for integration with Windows NT.
There are two alternatives for your software to use,
DataDirect Connect for ODBC and DataDirect SequeLink.
Both Connect and SequeLink are
Native Optimized
drivers and as such are fully compatible with the underlying
data connectivity specifications, such as ODBC. Both families
are implemented completely in the native code of the specific
architecture (e.g., all Java, all C#, etc).
Performance
Most developers choose the DataDirect Connect family of data
connectivity components because of its architecture, wire-protocol
design, and performance. In general, the Connect family offers
better performance than the SequeLink family.
Installation
The Connect and SequeLink families differ in how they are installed.
The Connect family only requires a single component installation,
which can be either as a client or on a server. This offers the
most direct connection between an application and its data source.
SequeLink has a different installation requirement. SequeLink has
a server portion that must be installed on the database server.
There is also a client component that is either installed on a
client machine or on a mid-tier server such as an application server.
Applications connect to the SequeLink server, the intermediate layer
located on the database server, through the thin, non-database
specific client, and through the SequeLink server, connect
to the data source.
Administration
Since data connections with Connect are simple and direct,
they require less administration and fewer resources and
offer much better performance. They are the best option when
customers want to limit server side installations and reduce
the work demands on DBAs.
Some users will choose DataDirect SequeLink for its centralized
monitoring and management capabilities and its access to a greater
range of databases. SequeLink allows you to configure and manage
your data access environment from a single point of control. One
thin universal client is installed and configured on the desktop
or application server, regardless of the brands and types of
databases to be accessed. Installation is streamlined and
configuration across clients can be remotely managed through
server-side data sources.
SequeLink Socket Server
The SequeLink Socket Server protects investments in existing
data and systems by allowing organizations to access additional data
through the SequeLink environment, from personal databases such
as dBASE, Microsoft Access and text files, to older legacy systems
like VSAM and IMS. As future demands for data change, the SequeLink
socket server assures the flexibility to rapidly incorporate new systems.
Click here for more help in choosing which data access product is right for you.
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