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Thread Safety in Python's dictionary
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Python's built-in structures are thread-safe for single operations, but it can sometimes be hard to see where a statement really becomes multiple operations.
Your code should be safe. Keep in mind: a lock here will add almost no overhead, and will give you p...
How do I use an INSERT statement's OUTPUT clause to get the identity value?
...ute the SQL query with .ExecuteScalar() (instead of .ExecuteNonQuery()) to read the resulting ID back.
Or if you need to capture the newly inserted ID inside T-SQL (e.g. for later further processing), you need to create a table variable:
DECLARE @OutputTbl TABLE (ID INT)
INSERT INTO MyTable(Name,...
Difference between WAIT and BLOCKED thread states
What is the difference between thread state WAIT and thread state BLOCKED?
6 Answers
6...
Value of i for (i == -i && i != 0) to return true in Java
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As i have read..java's int arithmetic is arithmetic mod 2power32, so i was thinking if we can prove this value in just 1 or 2 lines..if its a big proof..then no issue.
– Sunny
Jul 22 '13 at 6:35
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How to check if a user is logged in (how to properly use user.is_authenticated)?
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The document says: Read-only attribute which is always True (as opposed to AnonymousUser.is_authenticated which is always False). This is a way to tell if the user has been authenticated. This does not imply any permissions and doesn’t check ...
Feedback on using Google App Engine? [closed]
...ng them same entity group may not be best for frequent update purposes....
read this http://blog.notdot.net/2009/9/Distributed-Transactions-on-App-Engine
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Run/install/debug Android applications over Wi-Fi?
...ed or other Wi-Fi device)".
This information may prove valuable to future readers, but I rolled-back to the original version that had received 178 upvotes.
On some device you can do the same thing even if you do not have an USB cable:
Enable ADB over network in developer setting
It should sho...
Can PHP cURL retrieve response headers AND body in a single request?
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Many of the other solutions offered this thread are not doing this correctly.
Splitting on \r\n\r\n is not reliable when CURLOPT_FOLLOWLOCATION is on or when the server responds with a 100 code.
Not all servers are standards compliant and transmit just a \n for new ...
Can you write nested functions in JavaScript?
...upports writing a function within another function, or nested functions (I read it in a blog). Is this really possible?. In fact, I have used these but am unsure of this concept. I am really unclear on this -- please help!
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Set encoding and fileencoding to utf-8 in Vim
...s considered when starting to edit
an existing file. When a file is read, Vim tries to use the first
mentioned character encoding. If an error is detected, the next one
in the list is tried. When an encoding is found that works,
'fileencoding' is set to it. If all fail, '...