Derrived Attributes

Feb 19, 2006

I have a tbble with attributes

'image_data','resolution','created','file_size'

At the moment i'm sotring the 'image_date' as an OLE object datatype. Is there anyway that i can get access to automatically populate the attributes 'resolution', 'created' and 'file_size'? or could this be done using a different datatype for the 'image_data' itself?

PLEASE help, it would be SOOO much appreciated.

Thanks

Jarv

View Replies


ADVERTISEMENT

Storing Attributes Derived From Other Attributes

Nov 2, 2004

I want to create an attribute called "order_line_price", which is basically the quantity field * the cost per product.

I have written the following SQL query which works fine:

SELECT Order_line.order_number, Order_line.product_number, product_name, quantity, (quantity*price) AS [Order line price]
FROM (Order_line INNER JOIN Product ON Order_line.product_number=Product.product_number) INNER JOIN Price_band ON Product.price_band=Price_band.price_band;

I can create a table from this query, and all is ok. However, I want to store the value of each order_line_price next in its appropriate row in my Order_line table. I cant do this no matter what I try. I know that what im trying to do is store a derived coloumn, however I need to do it, because I have an attribute elsewhere which is the SUM(order_line_price), which I want to limit by specifying the order_number for which to add the order_line_prices up for.

So basically, how can I store a derived column like that? I guess I need to set something up in the default value property and lock the coloumn or something?

Ive posted here before, and havent had replys. So if your reading this and dont know the answer, but do know the link to a forum or chat room with speedier replies, please post the link.

Thanks.

View 1 Replies View Related

Export Tables With Their Attributes

Aug 13, 2006

Hi,

I was wondering if anyone might be able to help me here. I was trying to write up a technical report for the Access database i built. Are there an easy way of exporting all the tables with their attributes in Access?

For example, in the student table,
ID
FirstName
LastName
...

Thank you in advance

View 1 Replies View Related

How To Set Print Attributes For The Relationship Viewer

Jun 29, 2006

I have a DB with about 50 tables. I have arranged them in a particular order in the relationship viewer and would like to print out as much of the viewer as I can by choosing the paper size and/or setting a scale factor. Access does not appear to let one do either. When looking at the relationship page, the 'page setup' under File ->Pagesetup is grayed out. Selecting 'print' causes the relationships to be printed in some sort of predefined manner, on 81/2x11 pages. Is there anyway to control how this view is printed?

On a related note: When in the relationship viewer, the only way to scroll the view is by the margin slider bars (the mouse wheel does not work). SHould the mouse wheel do the verticle scrolling? Also, if I want to move two or more tables (at the same time) in this view, how can I select them?

Thanks
John

View 2 Replies View Related

Changing Field Attributes In Code

Jan 24, 2007

I know that I can use an Alter Table query to add table fields from code.

But what if I just want to change a field from being Required or Not Required, or perhaps change the field width of a text field?

How do I do that from VBA?

View 1 Replies View Related

Modules & VBA :: How To Adjust File Attributes

Jul 9, 2013

Below is code to adjust file attributes.

Code:
Public Shared Sub Main()
Dim path As String = "c: empMyTest.txt"
' Create the file if it exists.
If File.Exists(path) = False Then
File.Create(path)

[Code] .....

View 3 Replies View Related

Assigning Grouped Attributes To A Record

Sep 30, 2011

I'm creating a database of companies. Every company has at least one field of services they provide. There are three main groups which contain all the services (Let's say I have three tables).

What I need is to have a form/table (query?) where I can assign to a company any number of services from any group. Is it possible to do it in a form where I could simply add a service by choosing a group first and then a proper service, and then add more in the same way?

View 3 Replies View Related

Access Table, Fileds And Attributes's Names

Jun 30, 2005

hello,

Recently I have started working for one of the company where I have to deal with one of the access file. this file has lots of tables containing many fields.

My question is

How can I get all the tables name, their fields and attributes in Microsoft Word file. I have tried opening table > design view and copy text but it doesn't work. also tries coping table and paste in in word file but it takes ages

any suggestion will be helpful

Thank you
Viral

View 1 Replies View Related

Modules & VBA :: Search Table With Attributes - Extracting HTML Values

Oct 3, 2013

I have a table in msaccess which i would like to use as a search term to search values in another table. What i wanted to do is search the table with attributes and save all found attributes to a new table with its primary id.

Search_Keyword_Table
Id ---- Search_keyword
1 ----- Size - S
2 ----- Size - M
3 ----- Size - L
4 ----- Size - XL

Table to be searched

Id ----- Attributes
1 ----- <select name="attribute" id="attribute"><option value="Size - M">Size - M</option><option value="Size - L">Size - L</option></select>
2 ----- <select name="attribute" id="attribute"><option value="Size - S">Size - S</option><option value="Size - M">Size - M</option><option value="Size - L">Size - L</option></select>

Saved table results
Id ---- Attributes_found
1 ---- Size - M
1 ---- Size - L
2 ---- Size - S
2 ---- Size - M
2 ---- Size - L

View 2 Replies View Related

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?

View 4 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved