Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p><code>"yes/no"</code> is a few characters less to type.</p> <p><code>"true/false"</code> (and true/false) is more in line with other programming languages.</p> <p>In terms of performance, they are all strings as far as CF is concerned. It is not until you try to use them in conditional logic that they magically change into other data types, like java.lang.Boolean. The conversion between strings and Booleans and back again is very fast. It's what CF does most of the time. You'd be hard pressed finding any reliable tests proving one faster than the other.</p> <p>For code maintainability/readability it's best to stick with one or the other.</p> <p>Some legacy CF tag functions specifically require "yes/no". They simply will not work with "true/false". I believe this is no longer the case in CF9+.</p> <p>Don't rely on the ColdFusion documentation being accurate or up to date. Almost all of the methods that list "yes/no" as the default/allowed values actually support any kind of boolean value. "yes/no", "true/false", true/false, 1/0, etc.</p> <p>IMHO using "yes/no" for booleans is crazy. Backwards compatibility from the old CF5 era. Sucks that Adobe are still using it to output java Booleans.</p> <p>eg. <code>writeDump( var: (not true) );</code> gives you "NO". But, I wanted <code>false</code>?! Grrr.</p> <p>You can tell what java class your variable is currently by calling <code>myVar.getClass().getName()</code>. You can use it to watch CF casting your data from Boolean to String and back to Boolean again, like magic.</p>
    singulars
    1. This table or related slice is empty.
    1. POAre True and False equal to Yes and No when specifying argument/attribute values in terms of funcationality and performance?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USMike Causer
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POAre True and False equal to Yes and No when specifying argument/attribute values in terms of funcationality and performance?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    1. COThis answer is in line with what I needed to know - setting boolean arguments, rather than testing boolean values. I also agree that using true/false is more appropriate. On a team however, it is more difficult to implement a standard when the use of yes/no is used simply because the documentation indicates these are the values.
      singulars
      1. PO
      1. USDavid
    2. CORe: *I believe this is no longer the case in CF9+.* I wish. `<cfhttp getAsBinary=".."> still requires "yes/no" in CF10. I always forget that one.
      singulars
      1. PO
      1. USLeigh
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload