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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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 outputting.

Abbadon 15 cfoutout Email Required, but never shown. They both perform the same. 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.

Cfohtput Wakefield 5, 16 The Tek-Tips staff will check this out and take appropriate action. In such a case, you should use SQL to remove the duplicates. I have run into that several times, so I generally prefer cfloop. Cfoutout not sure the conclusion is sound. Is there any performance difference between using cfloop and cfoutput? I think this difference has been tackled, the best bet is to do a test for each to test in you specific use case.


Eliminates adjacent duplicate rows when data is sorted. As you can see in Figureexecuting the template results in many of the same values being output more than once.

Item 1 Item 2 Item 3 Im trying to get: Possible values are htmlhtmlattributeurljavascript, cssxmlxmlattributexpathldapand dn.

Join your peers on the Internet’s largest technical computer professional community. If not, is there any reason to prefer one over the cgoutput Whether to consider cffoutput case in grouping rows. The difference in output is shown in Figure Thanks again, I cfoutpuy been trying to figure out my mistake for three hours now and was getting very frustrated.

Examples with encodeFor parameter. 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.

For example, the following code displays the text “Hello World! Query column to use to group sets of records.

I sure could use your help, Thanks in advance Stack Overflow works best with JavaScript enabled. I develop using ColdFusion and wanted to know what is the best strategy to loop over large query result set.

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Sign up using Email and Too. In ColdFusion 10 you can now do grouped output. Item 1 Item 2 Item JamesRLamar 1 10 Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Programming ColdFusion by Rob Brooks-Bilson

Also you cannot use cfoutput for a query nested within an existing cfoutput tag, you will need to end the containing cfoutput first. Students Click Here Join Us! Matt Busche 13k 4 32 For cfoutput you can specify the startrow and the maxrows or the count to paginate your result. Sign up or log in Sign up using Google. Sign up using Facebook. This will make up for most cases of inefficient CFML. Executing the template results in the output shown in Figure Register now while it’s still free!


For cfloop you have to specify the endrow index instead of the count. There are some notable differences though.

coldfusion – cfloop vs cfoutput on queries – Stack Overflow

It really depends how the compiler compiles the CFML pages to bytecode, but I do agree that in all likelihood the compiler will at the very least remove unnecessary instructions to the JVM. Displays output that can contain the results of processing ColdFusion variables and functions.

Based on the value, encodefor will be invoked for each expression inside the cfoutput tag body except the expression which is already wrapped using encodefor function. Same applies for Railo 4. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Nice, I take it you mean grouped cfloops bennadel. In this case, we want to group the query results by Department.