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Is there a performance difference between CTE , Sub-Query, Temporary Table or Table Variable?
...ve language, not a procedural language. That is, you construct a SQL statement to describe the results that you want. You are not telling the SQL engine how to do the work.
As a general rule, it is a good idea to let the SQL engine and SQL optimizer find the best query plan. There are many perso...
Using property() on classmethods
I have a class with two class methods (using the classmethod() function) for getting and setting what is essentially a static variable. I tried to use the property() function with these, but it results in an error. I was able to reproduce the error with the following in the interpreter:
...
Adjust list style image position?
...t item.
Using a combination of background and padding styles can create something that looks similar e.g.
li {
background: url(images/bullet.gif) no-repeat left top; /* <-- change `left` & `top` too for extra control */
padding: 3px 0px 3px 10px;
/* reset styles (optional): */
list-...
Handling a Menu Item Click Event - Android
I want to create an intent that starts a new activity once a Menu Item is clicked, but I'm not sure how to do this. I've been reading through the android documentation, but my implementation isn't correct..and some guidance in the right direction would help. I've listed my code below and commented o...
Making a private method public to unit test it…good idea?
Moderator Note: There are already 39 answers posted here (some have been deleted). Before you post your answer, consider whether or not you can add something meaningful to the discussion. You're more than likely just repeating what someone else has already said.
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What's the best practice for primary keys in tables?
... make the primary key. This is achieved in three ways depending on requirements:
21 Answers
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Close and Dispose - which to call?
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According to Microsoft guidelines, it's a good practice to provide Close method where suitable. Here is a citation from Framework design guidelines
Consider providing method Close(), in addition to the Dispose(), if close is standard terminology in the area. When doing so, it is important that...
How to modify a specified commit?
...ou wish to modify.
In the default editor, modify pick to edit in the line mentioning 'bbc643cd'.
Save the file and exit: git will interpret and automatically execute the commands in the file. You will find yourself in the previous situation in which you just had created commit bbc643cd.
At this p...
TypeScript with KnockoutJS
...pescript code in notepad, you would only need the definitions at compile time. On the other hand, one of the good points of typescript is that it is easier for the visual studio (and other editors through plugins) intellisence to understand your code and it helps you much with auto completion and pe...
Creating a config file in PHP
...n array:
<?php
return array(
'host' => 'localhost',
'username' => 'root',
);
And then:
$configs = include('config.php');
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