Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
Field naming conventions in SQL
Message
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00450333
Message ID:
00450413
Views:
31
>Hi Dustin.
>
>>I'm reading through "SQL Server 7.0" WROX book (highly recommended by many) and I noticed that their naming convention for field names do not use "c" or "i" or "n" (or anything else) before the field names to denote TYPE. (Example = nCustomerNumber, cName, tOrderDate)
>>
>>Usually in XBase examples, you see everyone doing this.
>>However, in SQL I see this less. Anyone have any thoughts on this? What are your normal procedures? Is it a 'waste' of time to do this in SQL or something?
>
>Actually, I think this is a waste of time in xBase too. It makes sense with variables because xBase is weakly typed (meaning you can put any value into any variable), so a naming convention tells the developer what data type is expected in a variable. However, fields in tables are strongly typed, so there's no need to use a naming convention to tell you the expected data type; just look at the table structure.
>
>My 2 cents (and I'm guessing I'll hear some opposing opinions <g>).
>
>Doug

I agree. I thought it was just me, but I never liked the format iCompanyID or cName in database field. My thought has always been that the only person who cares about this is a developer, and they should know the type of the field if they are doing any kind of work with it. If the user ever does see the field name, perhaps in a reporting application, I think Name looks better than cName.

FWIW:

1. I always use surrogate primary keys
2. My primary keys are integers, although I am considering GUIDs.
3. The name of my primary key is always table name + "ID" (i.e. CompanyID)
4. My foreign keys keep the name (i.e. in a child table of the company table, the foreign key remains CompanyID).
5. Rather than name a field CompanyName in the company table, I use Name.
6. If ever their is a duplicate field in a join (i.e. two fields, each named Name in the Company and Contacts table), I use the AS clause in the SELECT to change the field names.
Chris McCandless
Red Sky Software
Previous
Reply
Map
View

Click here to load this message in the networking platform