W

warehouse

See [data warehouse]

Web service

A modular application that performs specific tasks and is accessible through open protocols such as HTTP and SOAP.

WebSphere MQ

A family of IBM licensed programs that provides message queuing services.

Windows global group

A global group exists only on a domain controller and contains user accounts from the domain's SAM database. That is, a global group can only contain user accounts from the domain on which it is created; it cannot contain any other groups as members. A global group can be used in servers and workstations of its own domain and in trusting domains.

Windows local group

A local group can include user accounts created in the local accounts database. If the local group is on a machine that is part of a domain, the local group can also contain domain accounts and groups from the Windows NT domain. If the local group is created on a workstation, it is specific to that workstation.

worksheet format (WSF)

WSF files are Lotus 1-2-3 and Symphony worksheets that the database manager supports.

wrapper

In a federated system, the mechanism that the federated server uses to communicate with and retrieve data from the data sources. To implement a wrapper, the federated server uses routines stored in a library called a wrapper module. These routines allow the federated server to perform operations such as connecting to a data source and retrieving data from it iteratively. The DB2 UDB federated instance owner uses the CREATE WRAPPER statement to register a wrapper for each data source that is to be included in the federated system.