By Susan Sales Harkins
Microsoft entry 2002 is a robust, relational database software program package deal that makes it effortless to create and deal with complicated databases. With entry, clients can create a database speedy from scratch or by utilizing an entry database Wizard. as soon as the database is created, entry presents all of the instruments had to input and manage info. With the aid of absolutely the Beginner's consultant, readers may be able to speedy begin a brand new database by utilizing the Database Wizard, create tables from scratch or by utilizing a Wizard, upload and edit database details through the use of either tables and kinds and control info in a couple of tables by utilizing queries and stories. The ebook assumes totally no previous wisdom of the subject, and studying is simple end result of the book's lighthearted yet no-nonsense variety. It serves as an outstanding source for clients who're thoroughly new to entry 2002 or who're upgrading from a prior model of the software program.
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Extra info for Absolute Beginner's Guide to Microsoft® Access 2002
Applying Rule Three You'll be storing information on corn, beets, petunias, and who knows what else. How do you tell one plant from another? The answer is that each plant has some unique information about it. In database terms, this unique information is referred to as a primary key. The third rule says that each table must contain a primary key. Simply stated, a primary key field contains a value that uniquely identifies each record and can't be null (blank or otherwise unknown). The following are the two ways to choose a table's primary key: • You can rely on the stored information to uniquely identify each record One or more fields in the data might already be unique for each record.
After doing so, we have two tables (not Part II: Building and Using a Database 57 58 Part II: Building and Using a Database including the catalogs table): Later, you'll see how you can link these two tables together to tell which type applies to which plant. Right now, you should still concentrate on splitting things up. Applying Rule Three You'll be storing information on corn, beets, petunias, and who knows what else. How do you tell one plant from another? The answer is that each plant has some unique information about it.
By the end of the process, you might need to update your mission statement, but that's the whole point of the design process. For the purposes of this book, we'll create a database that stores gardening information. Specifically, we'll track flowers, plants, and vegetables. Using the previous sentence as our mission statement, we'll get started. We'll use this database for the rest of the book but don't be surprised if we enhance the database in later chapters. [ Team LiB ] [ Team LiB ] Part II: Building and Using a Database 53 54 Part II: Building and Using a Database The Discovery Process Finding the Data At this stage of the process, it isn't important to know all that much about the database program you'll be using, which in this case is Access.