Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Building a dynamic query in Access

Building a dynamic query in Access

Building a dynamic query in Access

I am building an Access database to automate the printing of COA's.  I have one table (table 1) of the test data 50+ tests, and one table (table 2) of what specific tests specific customers require.  I need to build a query that will show me the only the test results for the tests required by a specific customer.  So I need the tests specified in a query of table 2 to become the field names in a query of table 1.  Does any one have and example of how something like this can be done?  I am fairly new to writing code, so I may need a bit more explanation of the code.

RE: Building a dynamic query in Access

"So I need the tests specified in a query of table 2 to become the field names in a query of table 1."
Not necessarily. Yes you can build queries in code, but in this case it may be that you can use a join query to link the two tables and a filter to select your customer. Or perhaps a third table is needed for the test results.
More info would get a better answer, and you might get a better response on Tek-Tips.com


RE: Building a dynamic query in Access

Thank you, I will also try Tek-tips.

Here is more information.  We have various customers that require a certificate of analysis for our products.  One customer might require test1 test 2 and test 3 be reported, another might require test2 and test3.  I have one table that has the data for tests1-20.  In the end I need to create a report that based on which customer I am preparing a COA for, I get only those tests they require.  I could simply run a query to gather the results from tests1-20, then prepare individual reports for each customer selecting from that query the fields I need, but then I would have to construct a new report for each customer. I am trying to do this so I can use one query and one report for all customers.  To do this, I believe I need one table to specify which tests a customer requires.  Then those tests need to become the fields in query to retrieve the test results from the data table for the products the custoerm ordered.  Make sense?

RE: Building a dynamic query in Access

You can do that using any .net language like C# with Ado.net or linq

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close