Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Their point is just that the range of available identifiers is larger, but the semantic overloading of certain characters makes it easy to write code that <em>looks</em> like it might be doing something weird. </p> <p>If you take a closer look at the first sample,</p> <pre><code>(lambda (*&lt;8-]= *&lt;8-[= ) (or *&lt;8-]= *&lt;8-[= )) </code></pre> <p>and rename the variable <code>*&lt;8-]=</code> to <code>a</code>, and <code>*&lt;8-[=</code> to <code>b</code>, we see that it's a pretty simple function:</p> <pre><code>(lambda (a b) (or a b)) </code></pre> <p>In the second case, it's just making the point that since things like <code>+</code>, <code>&lt;</code>, and so on aren't special operators or anything, they're just symbols with the names <code>"+"</code> and <code>"&lt;"</code>, you can use them as variable names. Again, we can rename variables and turn </p> <pre><code>(defun :-] (&lt;) (= &lt; 2)) </code></pre> <p>into </p> <pre><code>(defun :-] (a) (= a 2)) </code></pre> <p>This one is rather unusual, since the colon prefix indicates a keyword (a special sort of self-evaluating constant in Common Lisp), but SBCL seems to handle it:</p> <pre><code>CL-USER&gt; (defun :-] (&lt;) (= &lt; 2)) :-] CL-USER&gt; (:-] 2) T CL-USER&gt; (:-] 3) NIL </code></pre> <p>Putting function definitions on keyword symbols is somewhat unusual, but it's not unheard of, and can be useful. E.g., see <a href="http://xach.livejournal.com/301076.html" rel="nofollow">Naming functions with keywords</a>. </p>
    singulars
    1. This table or related slice is empty.
    1. POWhat does this Lisp code mean?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USJoshua Taylor
    1. USJoshua Taylor
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POWhat does this Lisp code mean?
      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. COSome discussion about keyword-named functions: http://xach.livejournal.com/301076.html
      singulars
      1. PO
      1. USLars Brinkhoff
    2. CO@LarsBrinkhoff Good find! I added a link in my answer.
      singulars
      1. PO
      1. USJoshua Taylor
 

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