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How to efficiently build a tree from a flat structure?
...ntID property so they can be arranged in trees. They are in no particular order.
Each ParentID property does not necessarily matches with an ID in the structure. Therefore their could be several trees emerging from these objects.
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Can you create nested WITH clauses for Common Table Expressions?
...
These answers are pretty good, but as far as getting the items to order properly, you'd be better off looking at this article
http://dataeducation.com/dr-output-or-how-i-learned-to-stop-worrying-and-love-the-merge
Here's an example of his query.
WITH paths AS (
SELECT
Employ...
Why compile Python code?
...ete and whatever benefits you gained are lost. You need to recompile it in order to get the .pyc or .pyo benefits back again again, such as they may be.
Drawbacks:
First: There's a "magic cookie" in .pyc and .pyo files that indicates the system architecture that the python file was compiled in. If...
How to restart tomcat 6 in ubuntu [closed]
...art and shutdown tomcat, You could use that
if tomcat is installed then
/etc/init.d/tomcat5.5 start
/etc/init.d/tomcat5.5 stop
/etc/init.d/tomcat5.5 restart
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Creating Multifield Indexes in Mongoose / MongoDB
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@DamonYuan They set the sort order of the fields in the index. 1 is ascending, -1 would be descending.
– JohnnyHK
Oct 27 '15 at 0:05
1...
How can I get the SQL of a PreparedStatement?
...+
" SET" +
" manufacturer_id = ?," +
" name = ?," +
" sort_order=0;"
);
// 3. fill template
stmt.setInt(1, 23);
stmt.setString(2, 'Google');
// 4. print sql string
System.out.println(((JDBC4PreparedStatement)stmt).asSql());
So it returns smth like this:
INSERT INTO oc_manufacturer...
How do you automatically set text box to Uppercase?
...le="text-transform:uppercase" />
<img src="../images/tickmark.gif" border="0" />
Please note this transformation is purely visual, and does not change the text that is sent in POST.
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How to decide between MonoTouch and Objective-C? [closed]
... think you're a dev wuss if it happens that you don't like pointers (or C, etc.). I used to walk around with a copy of the IBM ROM BIOS Pocket Reference, and when I was writing assembly and forcing my computer into funny video modes and writing my own font rendering bits for them and (admittedly tra...
Is the 'type' attribute necessary for tags?
...ic event scripts in HTML4 (like in onload, onclick, onmouseover attributes etc.) you have to define <meta http-equiv="content-script-type" content="text/javascript"> in <head> or configure your server to send Content-Script-Type: text/javascript in HTTP headers.
– T...
What is the difference between statically typed and dynamically typed languages?
...he type is associated with run-time values, and not named variables/fields/etc. This means that you as a programmer can write a little quicker because you do not have to specify types every time (unless using a statically-typed language with type inference).
Examples: Perl, Ruby, Python, PHP, Java...