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BerichtGeplaatst: 14-08-2018 10:39:15    Onderwerp: Why not make the Reageren met citaat

The Theory of Meaningless Numbers

Author: Peter A Donovan



August P.J. Williams Womens Jersey , 2007



The Theory Of Meaningless Numbers



By



Applause Software



Peter A Donovan



What is a meaningless number?



Meaningless numbers are ID and CODE columns which uniquely identify a record in a database table. They were made up by computer programmers, and in traditional programming, they formed the first entry window where you were responsible for remembering that 芒鈧揇芒鈧?means Doctor Andrus Peat Womens Jersey , and 芒鈧?02芒鈧?is your best customer. Since it would be wrong to discriminate against an entry window just because it芒鈧劉s a letter and not a number [age of equality] I芒鈧劉ll include meaningless letter combo芒鈧劉s in this theory also.



The point?



Users should not be required to remember 芒鈧?02芒鈧?for General Electric of Massachusetts and 芒鈧?91芒鈧?for General Electric Turbine Division芒鈧? but programmers should indeed still make use of them as the basis of relationships between database table records. Just don芒鈧劉t expect the users to enter or remember them: the truly meaningless numbers and codes can be totally hidden from users and as a study, I will refer to RoloFlex by Applause Software as a good example where each table is based on a unique meaningless number. [reference: http:www.applausesoftware : free RoloFlex]



What is a meaningful number?



A meaningful number is those database records that are referred to commonly by number such as PO #4067, Sales Order Andrus Peat Womens Jersey ,2# and Speeding Ticket #352-4635A. These numbers exist on paper and are the primary way of referring to a record of this type. When you go to look up my speeding ticket, you might indeed look it up under my name also, but when a payment is received [good luck] you want to be able to enter the printed number 352-4635A and quickly locate and apply payment before my check bounces.



mn which is ascii [mixed numbers and letters] which is used for finding it.



Why not make the key column a automatic increment number for relation purposes alongside a humanly enterable column consisting of alpha-numeric characters? Hands please? How many programmers have written 200 lines of code to auto-increment 芒鈧?352-4635A芒鈧? The role of the meaningless number is to get auto-incremented in 1 line of code Alex Anzalone Womens Jersey , being totally hidden from the user, and the foundation of the relationship to it芒鈧劉s parent database table. The role of the Speeding Ticket number is to humanly find a record more easily than 12342345345565.



Table Layout Proposed:



-Fines-



Column: Element: Type: Length: Index: Relates To:



1 ID Numeric 16.0 1 (unique)



2 TicketNo Ascii 20 2 (unique)



3 VIN_ID Numeric 10.0 3 VIN.ID Not VIN (Ascii Field)



4 SSN_ID Numeric 10.0 4 SSN.ID Not SSN (Ascii Field)



-VIN-



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