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CREATING A DATABASE USING DB/TEXTWORKS LIBR 202Richard Jackson
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DB/TextWorks A Database Management System (DBMS) made by Inmagic Instructions for downloading: http://slisweb.sjsu.edu/ecommunication/IMDown.htm http://slisweb.sjsu.edu/ecommunication/IMDown.htm
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Two steps in creating a database Database Designer Creates the data structure Database Maintainer (Indexer) Populates the database with records
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Designing the Database Primary decisions Purpose of the database Nature of its users Set up the fields using the DBMS Field name Type of data contained in the field How the field is to be indexed Limits on values that can be entered (“validation”)
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Adding Records to the Database For each document in the collection, the indexer creates a record Appropriate field values are entered according to the rules for standards for the database Records will be added (and sometimes updated or deleted) through the life of the database
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A collection of rocks...
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Indexing A field must be indexed in order to be searchable A field can be Term indexed or Word indexed
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Term Indexing Each field value is indexed as a single entry RecordsIndex for Color field #1 Color: Dark gray #2 Color: Black #3 Color: Gray #4 Color: Dark brown #5 Color: Pink Black#2 Dark brown#4 Dark gray#1 Gray#3 Pink#5
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Word Indexing Each word in the field value is separately indexed RecordsIndex for Note field #1 Note: Found at Montana del Oro; perfect skipping rock. 1967 #3 at #1 del #1 embedded #3 found #1, #3 it #3 mexico #3 mica #3 montana #1 new #3 northern #3 obsidian #2 oro #1 perfect #1 piece #3 quartz #3 rock #1 rose #3 skipping #1 with #3 #2 Note: Obsidian. #3 Note: Found in northern New Mexico, 1967. Rose quartz with a piece of mica embedded in it.
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For more information … Review the 202 Online Resource: http://slisweb.sjsu.edu/courses/202/index.html http://slisweb.sjsu.edu/courses/202/index.html Search DB/TextWorks Help Click Help > Help Topics, or press F1 Click the Index tab to browse or search for help topics As always, post any questions on Blackboard
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