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How many random elements before MD5 produces collisions?
... quintillion 374 quadrillion 607 trillion 431 billion 768 million 211 thousand 456.
However if you keep all the hashes then the probability is a bit higher thanks to birthday paradox. To have a 50% chance of any hash colliding with any other hash you need 264 hashes. This means that to get a collis...
Make function wait until element exists
...you can put your function. The interval solution is really a bad solution and should be used only if nothing else works.
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AWS S3: how do I see how much disk space is using
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AWS Cloudwatch now has a metric for bucket size and number of objects that is updated daily. About time! aws.amazon.com/blogs/aws/…
– cudds
Jul 28 '15 at 23:13
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Entity Framework. Delete all rows in table
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For those that are googling this and ended up here like me, this is how you currently do it in EF5 and EF6:
context.Database.ExecuteSqlCommand("TRUNCATE TABLE [TableName]");
Assuming context is a System.Data.Entity.DbContext
...
Does a view exist in ASP.NET MVC?
...eader , i hvnt tested but , IController controller = new HomeController(); and then controller.ControllerContext will give the thing which you can pass to findview methods.
– Vishal Sharma
Dec 6 '13 at 8:43
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Saving changes after table edit in SQL Server Management Studio
...-creation". Voila.
That happens because sometimes it is necessary to drop and recreate a table in order to change something. This can take a while, since all data must be copied to a temp table and then re-inserted in the new table. Since SQL Server by default doesn't trust you, you need to say "OK...
ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
...relationships involve a parent table that holds the
central data values, and a child table with identical values pointing
back to its parent. The FOREIGN KEY clause is specified in the child
table.
It will reject any INSERT or UPDATE operation that attempts to create
a foreign key value...
Activity transition in Android
How can I define the transition between two activities for Android 1.5 and later?
I would like an activity to fade in.
14 ...
adding and removing classes in angularJs using ng-click
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You just need to bind a variable into the directive "ng-class" and change it from the controller. Here is an example of how to do this:
var app = angular.module("ap",[]);
app.controller("con",function($scope){
$scope.class = "red";
$scope.changeClass = function(){
if (...
How to close this ssh tunnel? [closed]
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Assuming you ran this command: ssh -f user@mysql-server.com -L 3306:mysql-server.com:3306 -N as described in the post you linked.
A breakdown of the command:
ssh: that's pretty self-explanatory. Invokes ssh.
-f: (From the man ssh page)
Reques...