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Returning IEnumerable vs. IQueryable
... approximately takes 90 seconds to run that block of code against a WebLog table which has 1 million records.
So, all table records are loaded into memory as objects, and then with each .Where() it will be another filter in memory against these objects.
When we use IQueryable instead of IEnumerabl...
Setting up connection string in ASP.NET to SQL SERVER
...tabase using the details verified above in the con string wizzard. Add any table and save the file.
Now go into the web config, and magically, you will see nice clean working connection string there with all the details you need.
{ Below was part of an old post so you can ignore this, I leave i...
What is an AngularJS directive?
...e things like <a href="...">, <img src="...">, <br>, <table><tr><th>. How would you describe what a, href, img, src, br, table, tr, and th are? That's what a directive is.
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The JPA hashCode() / equals() dilemma
...ness of the business id in the database. Why having THREE indexes for each table in the database then?
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Placing Unicode character in CSS content value [duplicate]
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Here's another list of arrows: unicode-table.com/en/sets/arrows-symbols Use the "U+" code, but replace the "U+" with "\". e.g. "U+25C0" becomes content: "\25C0";
– Luke
Dec 5 '14 at 15:26
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How do function pointers in C work?
...eritance in C.
Let's say we want to make a subclass of String, say an ImmutableString. In order to make the string immutable, the set method will not be accessible, while maintaining access to get and length, and force the "constructor" to accept a char*:
typedef struct ImmutableString_Struct* Imm...
Extending the User model with custom fields in Django
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Since Django 1.5 you may easily extend the user model and keep a single table on the database.
from django.contrib.auth.models import AbstractUser
from django.db import models
from django.utils.translation import ugettext_lazy as _
class UserProfile(AbstractUser):
age = models.PositiveInteg...
What are the applications of binary trees?
...nary Tries - Used in almost every high-bandwidth router for storing router-tables.
Hash Trees - used in p2p programs and specialized image-signatures in which a hash needs to be verified, but the whole file is not available.
Heaps - Used in implementing efficient priority-queues, which in turn are u...
How to improve performance of ngRepeat over a huge dataset (angular.js)?
...e data (I am using a button for simplicity) you increment the limit.
<table>
<tr ng-repeat="d in data | limitTo:totalDisplayed"><td>{{d}}</td></tr>
</table>
<button class="btn" ng-click="loadMore()">Load more</button>
//the controller
$scope.tot...
What is “overhead”?
...uably more absurd) approach would be to post all of the inputs to some SQL table in an RDBMS. Then simply calling the SQL SUM function on that column of that table. This shifts our local memory overhead to some other server, and incurs network overhead and external dependencies on our execution. ...