By John Petersen
Absolute Beginner's consultant to Databases brings the weather of a database jointly utilizing effortless to appreciate language, ideal for the real newbie. It not just supplies particular palms on perform, but additionally presents an summary of designing, retaining and utilizing a database. This e-book covers what databases are used for, why databases are vital, why the layout of the database is necessary, database normalization, keys to strong database layout, modifications in sorts of databases, and indexes--what they're, how we use them, and why they're important.
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Additional resources for Absolute beginner's guide to databases
14). 14 The report definitions in the Northwind Traders Database. CHAPTER 2 THE ANATOMY OF A REAL DATABASE 35 To illustrate how the reports work, consider the Products by Category query. 15. 2. 16. 15 The Products by Category query in Design View. 16 The Products by Category query in Datalist View. It should be clear to you how useful queries can be. The Datalist View, however, is not very useful to an end user. This is where reports come in. With a report, you can build a layout that makes the data easier to view and is more useful to the end user.
Finally, forms enable users to interact with the data. By examining a sample Access database, you get to see the finished product and, hopefully, a glimpse of how it all fits together. This chapter gives you a view of the forest by taking a quick look at the trees. If you understand the big picture, you will have an easier time understanding the details that will come in the remaining chapters. CHAPTER 2 THE ANATOMY OF A REAL DATABASE 41 Now that you have an understanding of what a database is and how databases are implemented in Access, it is time to apply this knowledge in creating your own database.
12 The database model is now complete with entities, foreign keys, and relationships. So, why do they call it a “crow’s foot” model? 13 shows why the model has this seemingly corny name.
Absolute beginner's guide to databases by John Petersen