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Introduction to Databases Laurie Shteir and Ezequiel Moctezuma MS Access Uses extension .mdb (multi-relational databse) Is a powerful database management system (DBMS) that functions in the windows environment and allows you to create and process data in a database Key features are: Data entry and update Queries (questions) Forms Reports Web support What is a Database Collection of all the data related to a particular topic or purpose -- for example, student data, customer data or product data Structure of a Database Records Garner Julia Garrett Allen Gieger Carl Geiser Gary Goucher Gerard File or Table 30 Simpson Ave 1222 Elm Street 25 West Ave 712 Chestnut 17 Asbury Ave Fields 555-3432 555-9876 555-2702 555-1112 555-2956 Definitions Data field is a group of related characters Garner Julia 30 Simpson Ave 555-3432 Data Record is a group of related data fields Garner Julia 30 Simpson Ave 555-3432 Definitions A Database is a collection of one or more related data files or tables Garner Julia 30 Simpson Ave Garrett Allen 1222 Elm Street Gieger Carl 25 West Ave Geiser Gary 712 Chestnut Goucher Gerard 17 Asbury Ave 555-3432 555-9876 555-2702 555-1112 555-2956 What can I do with Database Software? Enter data quickly and easily Organize records in different ways Locate specific records quickly Eliminate data Connect files with related information Create Reports Create Queries Data Management Software File Managers Manage data from one file (Flat File) Data Base Management Systems Manage data from related files; these files are connected in some way Database Organization Hierarchical, Network, Relational and Object-Oriented Relational -- Collection of related tables that share information. Most common type of database organization Access is a relational database that can be used as a file manager or a full-blown database management system Relational Database Collection of related tables that can share information. Most flexible Sales No Territory Sales No Name 112 113 114 115 116 117 112 115 114 113 117 116 1 2 3 4 5 6 Beller,James Morris,Dave Allan, Wil Harriz,Jackie Abelson, Mae Stern,Joel Other terms to know TableQueryField propertiesFilterRelational databaseReportDatasheet windowPrimary keyFieldFiled typesSortCriteria cell-