You have probably used spreadsheet software like Microsoft Excel or OpenOffice. If so, you have likely used tables, views, and indexes while manipulating your spreadsheet data. These are all concepts used in relational databases. This video explains the concepts of relational databases using Microsoft Excel. A "primary key" is a special type of index that is unique, and the main (or primary) value used to locate an entry in a database.
Source: Alexander Halavais, https://www.youtube.com/watch?v=Tsl_8I9ya3k
This work is licensed under a Creative Commons Attribution 3.0 License.
Last modified: Monday, October 11, 2021, 10:52 AM