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brianism
Inspiring
June 11, 2008
Question

Query Questions

  • June 11, 2008
  • 7 replies
  • 900 views
Hello all,
I am trying to pull out information from the database based on what a link is passing. But I am pulling out information I don't need.

Here are my links:

cad1.cfm?headmodel=14

cad1.cfm?headmodel=14V

And the Query:

<cfquery name="getforce" datasource="mydb">
SELECT * FROM presses WHERE model_head LIKE '#headmodel#%'
</cfquery>

Now my problem is that I need only the results with a V in it to come up when using that link and vice versa. But they come up when using the link without the V as well.
This topic has been closed for replies.

7 replies

D
Dan_Bracuk
Inspiring
June 12, 2008
Your task would be so much easier if you normalized your db.
B
brianismAuthor
Inspiring
June 12, 2008
Anything is possible. Here is what a portion of the database looks like. It is MS Access.

My hardcoded links to choose either 14...whatever or 14v...whatever

cad1.cfm?headmodel=14

cad1.cfm?headmodel=14V

Then to the action page with the query:

<cfquery name="getforce" datasource="mydb">
SELECT * FROM presses WHERE model_head LIKE '#headmodel#%'
</cfquery>

And a link to the database design of it.

<a href=" http://i20.photobucket.com/albums/b218/indigobluedreamz/db.jpg">Click Here</a>



D
Dan_Bracuk
Inspiring
June 12, 2008
It's possible that you have a bad plan and/or a bad database design. However, there is not enough information to tell.

Will these url variables eventually be coming from an anchor tag or a form field where the method = get?
D
Dan_Bracuk
Inspiring
June 12, 2008
Let's rephrase that question. Are these url variables hard coded? Are they query results? Are they random strings?
B
brianismAuthor
Inspiring
June 12, 2008
Hi Dan,
These are just hard coded variables.
D
Dan_Bracuk
Inspiring
June 11, 2008
exactly how are these url variables being generated anyway?
B
brianismAuthor
Inspiring
June 12, 2008
quote:
Originally posted by: Dan Bracuk
exactly how are these url variables being generated anyway?


Well, I am just putting the "cad1.cfm?headmodel=14" as a link so when you click it the query pulls out results according to what the headmodel equals. That's where I'm running into the problem, because I don't know what to put to just bring out 14's or 14v's. There is always going to be things after the 14 or 14V Ex. 14F or 14VFR.
D
Dan_Bracuk
Inspiring
June 11, 2008
Your logic problem is that you are not using wildcards. Performance wise, you should scope your variables and use cfqueryparam.
P
paross1
Participating Frequently
June 11, 2008
Setting headmodel=14 should give you results both with and without the V, and headmodel=14V should include only those with the V. Is that what you are getting?

Phil
B
brianismAuthor
Inspiring
June 11, 2008
quote:
Originally posted by: paross1
Setting headmodel=14 should give you results both with and without the V, and headmodel=14V should include only those with the V. Is that what you are getting?

Phil


That is correct. What I need is setting headmodel=14 to not bring up any results with the V. I don't know how to do that.
P
paross1
Participating Frequently
June 11, 2008
quote:
What I need is setting headmodel=14 to not bring up any results with the V. I don't know how to do that.
Then your query should look more like this:

SELECT * FROM presses WHERE model_head = '#headmodel#'

Of course, when using = instead of using LIKE with wildcards (%), the value in #headmodel#' must match exactly with the values in the model_head column.

Phil
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