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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
...
PostgreSQL 9.5
PostgreSQL 9.5 incorporates SELECT ... FOR UPDATE ... SKIP LOCKED. This makes implementing working queuing systems a lot simpler and easier. You may no longer require an external queueing system since it's now simple to fetch 'n' rows that no other sess...
ExecuteReader requires an open and available Connection. The connection's current state is Connectin
...on = new SqlConnection(connectionString))
{
var queryString = "SELECT PromotionID, PromotionTitle, PromotionURL FROM Promotion WHERE PromotionID=@PromotionID";
using (var da = new SqlDataAdapter(queryString, connection))
{
// you could also use a SqlDataReader...
How to differ sessions in browser-tabs?
...of accounts stored in cookies, google mail is just storing all cookies and select one according to the url.
– Mhmd
Oct 25 '14 at 0:57
5
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What are all the user accounts for IIS/ASP.NET and how do they differ?
...nymous Authentication entry:
Ensure that "Application pool identity" is selected:
When you come to apply file and folder permissions you grant the Application Pool identity whatever rights are required. For example if you are granting the application pool identity for the ASP.NET v4.0 pool per...
PowerShell: Store Entire Text File Contents in Variable
...and without sub-expressions, for example:
${C:file.txt} = ${C:file.txt} | select -skip 1
I became fascinated by this notation initially because it was very difficult to find out anything about it! Even the PowerShell 2.0 specification mentions it only once showing just one line using it--but with...
Which parallel sorting algorithm has the best average case performance?
...gistration which is free):
University lectures:
Parallel Partitioning for Selection and Sorting
Parallel Sorting Algorithms Lecture
Parallel Sorting Algorithms Lecture 2
Parallel Sorting Algorithms Lecture 3
Other sources and papers:
A novel sorting algorithm for many-core architectures based on ...
Storing JSON in database vs. having a new column for each key
..._food pizza
.................
and query via something like this:
select meta_val from `table` where meta_key = 'name' and uid = 1 order by meta_id desc
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Find location of a removable SD card
...d an application that used a ListPreference where the user was required to select the location of where they wanted to save something.
In that app, I scanned /proc/mounts and /system/etc/vold.fstab for sdcard mount points. I stored the mount points from each file into two separate ArrayLists.
The...
Setting environment variables on OS X
... environment.plist works fine even for apps launched via spotlight. So the selected answer is correct for Snow Leopard ;-)
– Louis Jacomet
Jun 9 '10 at 14:54
5
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How to link godaddy domain with AWS Elastic Beanstalk environment?
...s).
Now you can link you domain with your Elastic Beanstalk site. To do so select/create proper A record type in Route 53 and set Alias for it:
Hope it helps.
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