How to use javascript and sql

Question

Hi,
I am new to HTML DB. I am trying to populate some textfields once a a drop down menu is selected .
But my information to populate need to be obtained by querying my dabase how do i do that? using javascript
or is there another way of doing that without using javascript?

Answer 1

I understand you don't want to actually "submit" the page. Undsertand that with the web, you either:
1. bring all of the values from the server to the page with you
2. go back to the server to get values based on the value of the lov, or
3. do partial-page refresh and get the new values from the server in the background with some VERY challenging javascript.
2 is the solution I am suggesting. Do not insert the values yet, just let HTML DB save them in your session state. As soon as you change the LOV the page will be submitted and return with the correct values in the related items. If you want to get fancy, you can choose not to show the related items until the user has selected a value from the LOV.
To see an example of this (kind of), go to the SQL Workshop and click on the "Tables" Icon. Now you should see a list of the tables in your schema. Change the "Type" LOV from table to index. Notice the page refreshed and the report changed? I'm suggesting the same concept, but just changing the value of some items, not a report.
Tyler