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order by price problem
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rocketdawg View Drop Down
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    Posted: 05 February 2005 at 11:35am
When displaying a list of cd's and their prices, the list is displayed in this order - ie:
 
1.40
1.50
2.00
21.00
4.50
45.90
7.50
 
etc
 
So, how do you get it to display in actual order of price? 7.00 should come before 21.00
 
Access 2000
 
my select statement:
 
strSQL = "SELECT * FROM products WHERE type = ""cd"" ORDER BY productPrice"
 
I'm sure it must be something simple, I just can't seem to work this one out. Thank you for your help.
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dpyers View Drop Down
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is product price a currency field or a text field?

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rocketdawg View Drop Down
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Points: 17 		Post Options Post Options   Thanks (0) Thanks(0)   Quote rocketdawg Quote  Post ReplyReply Direct Link To This Post Posted: 05 February 2005 at 12:03pm

productprice is a text field.

I tried this just to see what would happen:
 
strSQL = "SELECT * FROM products WHERE type = ""cd"" ORDER BY (productPrice*100)"
 
and it worked! It now orders correctly by price, and, miraculously it leaves the decimal point in the right place in the display table.
 
You raise a question in my head though. Why does a math calculation work on a text field? I would think that it would have to be a numeric field to have math performed on it. Or would it be easier just to accept the fact that it does, and move on? I only ask to understand, and perhaps help someone else with the same problem.
 
 
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Gullanian View Drop Down
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Points: 4373 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gullanian Quote  Post ReplyReply Direct Link To This Post Posted: 06 February 2005 at 12:14am
I think access is clever in datatypes and allows executions such as that, although it's better practise to make mathamatical operations in sql queries be run on numerical datatypes for database compatability if you ever choose to move.
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michael View Drop Down
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Points: 4670 		Post Options Post Options   Thanks (0) Thanks(0)   Quote michael Quote  Post ReplyReply Direct Link To This Post Posted: 06 February 2005 at 10:48am
actually it is ok to do math operations on text fields but you need to built in some error handling. Access automatically tries a cast on that field, but better practice is to make the field numeric.
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