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CREATING A DATABASE USING DB/TEXTWORKS LIBR 202Richard Jackson.

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Presentation on theme: "CREATING A DATABASE USING DB/TEXTWORKS LIBR 202Richard Jackson."— Presentation transcript:

1 CREATING A DATABASE USING DB/TEXTWORKS LIBR 202Richard Jackson

2 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

3 Two steps in creating a database  Database Designer Creates the data structure  Database Maintainer (Indexer) Populates the database with records

4 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”)

5 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

6 A collection of rocks...

7 Indexing  A field must be indexed in order to be searchable  A field can be Term indexed or Word indexed

8 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

9 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.

10 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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