One good reason to use cfloop instead of cfoutput is if you need to loop a query output within another query output cfoutput does not support nested query. Using CFOUTPUT to Output Query Data. Use the CFOUTPUT tag to define the query variable that you want to output to a page. When you use the QUERY. Grouping Output The CFOUTPUT tag has an attribute called GROUP that lets you to group output from your record sets before displaying it to the browser.
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Also you cannot use cfoutput for a query nested within an existing cfoutput tag, you will need to end the containing cfoutput first.
Grouping Output – Programming ColdFusion [Book]
You should consider how this might affect the performance of your application if you want to return only a few records from a large record set that contains numerous duplicate values. I believe it’s all the same as performance, Ben Forta.
This creates an outer and inner loop for looping over the result set and grouping the output appropriately. For example, the following code displays the text “Hello World! Executing the template results in the output shown in Figure The difference in output is shown in Figure It is important to note that using GROUP to remove duplicates from the result set does so after the result set is returned from the database.
You can however get away with it using cfloops. As of CF10, with the ability to group cfloops, that’s the only remaining functional difference. Item 1 Item 2 Item This attribute is optional and defaults to Yes.
This tag requires an end tag. Join your peers on the Internet’s largest technical computer professional community. I have run into cfoutlut several times, so I generally prefer cfloop. Thanks again, I have cfoutpuut trying to figure out my mistake for three hours now and was getting very frustrated. And the rest is pretty much personal preference as far as how you “like” to work with your loop.
Using CFOUTPUT to Output Query Data
Click Here to join Tek-Tips and talk with other members! Name of cfquery from which to draw data for output section. Start Free Trial No credit card required. Same applies for Railo 4.
This is easy enough to fix. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Examples with encodeFor parameter. Post as a guest Name. My problem is that when I setup my output I get: With Safari, you learn the way you learn best. This allows you to do such things as group the output of a query by a certain field or fields such as age, gender, department, color, etc.
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This will make up for most cases of inefficient CFML. I’m not sure the conclusion is sound.
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