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- DATABASE PROGRAMS: PICK THE ONE THAT SUITS YOU
- by Bob Follmer, KUGOR, May 1987
-
- (A general look at database programs)
-
- Information storage with databases is something that we
- invariably get around to exploring. But I did not know, until I
- started to read about them, that there is more than one type of
- database to be concerned about. In fact, not only is there more
- than one type, in actuality there are three types of database
- programs.
-
- First the definition which applies to all: a database management
- program stores, sorts, and retrieves specific information.
-
- When you start looking around the marketplace, as I did, you will
- find that there are programs that either will or will not handle
- words in the reports you might wish to keep and retrieve the
- precise way you want. Certain programs can only handle numbers,
- but do not do calculations. Some do all three, that is, handle
- words, numbers and calculations. Generally, the more expensive a
- program is, the more complex the tasks the program can do. There
- is always an exception or two to this rule, however.
-
- Basically, there are three types of database programs. The first
- of these are the flat-file types. These programs only store,
- organize and then output, in a sequenced manner, the information.
- An excellent example of this kind of program is that of a mailing
- list...it can be sorted by name, city, and/or zip code sequence.
-
- Another example would be a telephone list, Christmas card list,
- or personal names and addresses you would use in business, or at
- home. The second type of program is the relational database.
- This program allows you to link two or more files together with a
- common field that the user can predetermine.
-
- The third type of database is the programmable database. This
- will allow you to structure the database so that information can
- be manipulated in any manner that you desire. You can set limits
- on the fields, reports, and other data in many ways, thereby
- making the data more manageable for your particular needs.
-
- Borderlines tend to become somewhat fuzzy when attempting to cite
- specific examples of various database software. Two products of
- the greatest interest to Kaypro users are Perfect Filer and
- dBaseII. The latter is definitely in the third, the
- programmable, category. Perfect Filer, on the other hand, is a
- list manager of the first kind without equal. It provides for
- some limited degree of relational operators, too, qualifying it
- to bridge into the second category. The programming power
- inherent in dBaseII, however, once learned, offers the user total
- mastery over any kind of data.
-
- Next month I hope to explore at closer range the disadvantages
- and advantages of the different types of database programs.