The Advent wreath is a circular garland of evergreen branches representing eternity. On that wreath, five candles are typically arranged. During the season of Advent, one candle on the wreath is lit each Sunday as a part of the Advent services.
Combined DNA Index System. The Combined DNA Index System (CODIS) is the United States national DNA database created and maintained by the Federal Bureau of Investigation.
Overview of IMS Databases. An IMS database is a large, centralized collection of information comprising one or more physical files that can be accessed by the SAS/ACCESS interface to IMS. An IMS database is a hierarchical database. Information is structured in records that are subdivided into a hierarchy of related segments. A record is a root segment and all of its dependent segments. Segments are further subdivided into fields. The data in any record relates to one entity.