OpenEdge Data Management: DataServer for Microsoft SQL Server

Connection guidelines
Connection guidelines
When you create a schema holder, you specify certain connection information, such as
the physical and logical names for your MS SQL Server database and the user and
password information. OpenEdge stores this information so that you do not have to
provide it each time you connect. After you consider your security requirements,
proceed to connect the schema holder and then the data source.
Connections and security in Windows
When you configure an ODBC data source in Windows, you can choose one of three
levels of security:
• Standard — Requires that a client pass a user ID and password that the MS SQL
Server database validates against the list of users in the syslogins table. The
request typically comes from a nontrusted connection, such as through TCP/IP.
The OpenEdge client or WebSpeed agent passes this information with the User
ID (-U) and Password (-P) connection parameters.
• Integrated — Relies on the Windows operating system to validate user
information. The MS SQL Server database accepts user information from the
process that requests a connection. The request must come from a trusted
connection, such as one using Named Pipes. The MS SQL Server database
performs no additional validation.
• Mixed — Accepts requests from trusted or nontrusted connections:
– If the connection is trusted and the client provides no user ID, a user ID that
consists entirely of spaces, or a user ID that matches the user that started the
process, the MS SQL Server database accepts the connection.
– If the connection is nontrusted, the OpenEdge client must provide the user ID
and password.
Progress Software Corporation recommends the following guidelines for working with
a MS SQL Server database and Windows security:
• Configure a MS SQL Server database to use standard or mixed security if you are
using remote OpenEdge clients.
• If you are using mixed security, always have the clients specify the -U and -P
connection parameters.
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