Express is a multi-dimensional database and application development environment for building OLAP applications. At the heart of the Express server are dimensions and variables. Dimensions are the elements that an Express database is broken down by. Variables are the objects that hold data in an Express database. This three-dimensional variable or array is often visualized as a cube of data.
Express databases can have multiple variables, with common or a unique set of dimensions.
This multi-dimensional view of data is especially useful for OLAP applications. For Windows NT servers, use the Express Service Manager utility or stop and start the NT Service from the NT Service manager. The Express Adminsistrator provides an easy to use interface to create and maintain express databases. Write a SPL script to query the database. Alwayse backup the system databases with user databases as they contain catalog information about them.