CHEM 1030 Lecture Notes - Lecture 22: Referential Integrity, User Friendly, Railways Act 1921

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CHEM 1030 Full Course Notes
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CHEM 1030 Full Course Notes
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Storage media = 50 two-foot diameter disk. In the early days (1950s) of computing, a megabyte was considered to be a large amount of data. 600 megabytes is about the amount of data that will fit on a cd. About 300 hours of good quality video. =about half of the weight of a house ant. We can afford to collect and analyze huge amounts of seemingly trivial data. This is a good example of moore"s law. Microsoft access is a relational database management application that is used to create and analyze a database. A database is a collection of related data. Database - employees, sales, stores, products, etc. Think of your cell phone as a database. (it does. ) Objects are the basic elements of a database. Every record (every row) in a table contains the same fields (columns) in the same order. An interface that enables you to enter or modify record data.