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JOIN queries vs multiple queries
...ins, multiple queries is much better... look at the following benchmark I did:
Single query with 5 Joins
query: 8.074508 seconds
result size: 2268000
5 queries in a row
combined query time: 0.00262 seconds
result size: 165 (6 + 50 + 7 + 12 + 90)
.
Note that we get the same results in both ...
How do I make an HTML text box show a hint when empty?
...wser that does not support input placeholders, you can use a jQuery plugin called jQuery HTML5 Placeholder, and then just add the following JavaScript code to enable it.
$('input[placeholder], textarea[placeholder]').placeholder();
...
Using a ListAdapter to fill a LinearLayout inside a ScrollView layout
...mething like this (no ScrollView needed anymore):
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/my_top_layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
Then in onCreateView() (I'll use an example with a fragment) ...
How do you join on the same table, twice, in mysql?
I have 2 tables. One (domains) has domain ids, and domain names (dom_id, dom_url).
3 Answers
...
Draw on HTML5 Canvas using a mouse
...y = 2;
function init() {
canvas = document.getElementById('can');
ctx = canvas.getContext("2d");
w = canvas.width;
h = canvas.height;
canvas.addEventListener("mousemove", function (e) {
findxy('move', e)
}, false);
...
jQuery set radio button
I am trying to set a radio button. I want set it by using the value or the id.
12 Answers
...
Static and Sealed class differences
... a static
class using the new keyword. Static classes are loaded automatically
by the .NET Framework common language runtime (CLR) when the program
or namespace containing the class is loaded.
Sealed Class
A sealed class cannot be used as a base class. Sealed classes are
primarily used...
Plot correlation matrix into a graph
...ike scale_fill_gradient2() achieves the functionality you describe automatically. I didn't know that existed.
– Chase
Mar 28 '11 at 1:52
1
...
How to make ng-repeat filter out duplicate results
...e('yourModule', ['ui', 'ui.filters']);. Was stumped until I took a look inside the AngularUI js file.
– GFoley83
Apr 27 '13 at 4:45
...
How to install the Raspberry Pi cross compiler on my Linux host machine?
...'s cross compile a Pie!
Start with making a folder in your home directory called raspberrypi.
Go in to this folder and pull down the ENTIRE tools folder you mentioned above:
git clone git://github.com/raspberrypi/tools.git
You wanted to use the following of the 3 ones, gcc-linaro-arm-linux-gnue...