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How many socket connections can a web server handle?
...hared, virtual or dedicated hosting, I read somewhere a server/machine can only handle 64,000 TCP connections at one time, is this true? How many could any type of hosting handle regardless of bandwidth? I'm assuming HTTP works over TCP.
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Which cryptographic hash function should I choose?
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In cryptography, hash functions provide three separate functions.
Collision resistance: How hard is it for someone to find two messages (any two messages) that hash the same.
Preimage Resistance: Given a hash, how hard is it to find another message t...
Multithreading: What is the point of more threads than cores?
... of threads, which is parallelism: to run several separate lines of execution at once. In an 'ideal' system, you would have one thread executing per core: no interruption. In reality this isn't the case. Even if you have four cores and four working threads, your process and it threads will consta...
How to lock orientation during runtime
Is there a way to lock orientation during runtime? For example I'd like to allow the user to lock the screen to landscape if the user currently in landscape and toggle the menu option.
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Java EE web development, where do I start and what skills do I need? [closed]
I want to learn, at least at a basic level, how to build Java web applications (coming from a .NET background). I would like to be able to build, deploy a simple CMS type application from the ground up.
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What is the syntax for an inner join in LINQ to SQL?
...tement, and I'm after the standard syntax for a normal inner join with an ON clause in C#.
19 Answers
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LINQ to SQL Left Outer Join
...ach "left" row in a left-outer-join will match 0-n "right" rows (in the second table), where-as yours matches only 0-1. To do a left outer join, you need SelectMany and DefaultIfEmpty, for example:
var query = from c in db.Customers
join o in db.Orders
on c.CustomerID equa...
How to detect READ_COMMITTED_SNAPSHOT is enabled?
... SQL Server is there a way to detect whether a database has had its isolation level set via the T-SQL command ALTER DATABASE <database> SET READ_COMMITTED_SNAPSHOT ON;
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Adding Python Path on Windows 7
I've been trying to add the Python path to the command line on Windows 7, yet no matter the method I try, nothing seems to work. I've used the set command, I've tried adding it through the Edit Environment variables prompt etc.
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Open popup and refresh parent page on close popup
... JavaScript, i want to refresh parent page when I close this popup window.(onclose event?) how can I do that?
11 Answers
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