Staggered Lookup Tables

Aug 5, 2006

I would like to create a lookup field based on a table. However, I want the data displayed in a particular way. That is, I want 'dummy' fields for headings, and the selectable items are tabbed from these headings.

It is probably best to demonstrate what I mean, so here goes!

Sony
-PSX
-PS2
-PS3
-PSP
Microsoft
-XBox
-XBox 360

In my example above, the bold manufacturer names should be non-selectable. The console names are the selectable values.

A good example is the genre search field at:

http://www.pegi.info/pegi/search.do

However, as mine is for data entry rather than a search, the headings cannot be selectable.

Is this possible?

Any assistance would be greatly appreciated! Thanks in advance.

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LookUp Tables For Dynamic Set Of Attributes: Set A Pointer Or Use A Generic LookUp?

Jul 24, 2007

I'm wrestling with the issues; in other threads, it became apparent that because I could not know ahead of time what I will need to know about a given entity, I will use a table to enumerate attributes that is applicable for a given entity.

However, the stumper is that what if an attribute should conform to a set list of values? Since they are dynamic, I would have problem predicting what I will need to be able to lookup, and am even don't know whether I will need a one-many lookup or many-many lookup.

I thought that generic lookup table with a table listing "classes" of lookup would allow me to have one big generic lookup table while using "classes" to act like virtual tables so I can then set the query to appropriate "class" to return just right set of values.

But as I thought about it, I ran into some issues which is pulling me toward the crazy idea that I should have freestanding tables, and use a field in tblAttribute to give me the table's name so I'd know which free-standing table it points to, and have the necessary key to lookup the values within that table.

Even though my gut instincts tell me that I shouldn't be going against the conventions of database design (who the frick goes around creating free-standing lookups?!?), I'm simply not sure how I can use a generic lookup table to hold all information.

For example, suppose I was given a list of values that has its own categories. Since the former design allows only for two level (lookup and lookupclass), where am I to insert that extra level?

Furthermore, I found myself needing a set of virtual keys to reference a certain "class" of lookups for report purposes. That means I need an extra field in my lookup table than I originally anticipates. What if I find myself needing one more field that just won't fit the generic lookup table?

So does anyone have suggestions on how we would create a placeholder for a lookup table that will be made just in time?

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Nov 7, 2004

Hi ... Question #4 (question #3 is beyond me)

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Feb 20, 2005

I have seen a lot of database applications utilizing lookup tables with only one field. That field being the list of objects that is being used to "lookup" in a drop down or list box. (example: State lookup.. "South Carolina")

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Aug 2, 2006

Hey all

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Hi,

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Hello,

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Code:Post Code: Area Rating:------------- --------------| CM2 7 | | A |------------- --------------

I apologise for my really very poor diagram :P

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(#2)

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