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How do I create a random alpha-numeric string in C++?
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When to use SELECT … FOR UPDATE?
...hout specifying FOR UPDATE explicitly.
To solve this problem, Thread 1 should SELECT id FROM rooms FOR UPDATE, thereby preventing Thread 2 from deleting from rooms until Thread 1 is done. Is that correct?
This depends on the concurrency control your database system is using.
MyISAM in MySQ...
How to reliably guess the encoding between MacRoman, CP1252, Latin1, UTF-8, and ASCII
...8's strict validation rules, false positives are extremely rare.
ISO-8859-1 vs. windows-1252
The only difference between these two encodings is that ISO-8859-1 has the C1 control characters where windows-1252 has the printable characters €‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™...
Get Android .apk file VersionName or VersionCode WITHOUT installing apk
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edited Feb 7 '17 at 18:08
ToolmakerSteve
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How do I get the APK of an installed app without root access?
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Can I change the root EBS device of my amazon EC2 instance?
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Yep, it's dead easy:
Stop the instance.
Detach the root EBS volume.
Attach the alternate EBS...
What are the minimum margins most printers can handle?
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edited Apr 12 at 2:43
aaronsnoswell
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What is the difference between Digest and Basic Authentication?
... used where transport layer security is provided such as https.
See RFC-2617 for all the gory details.
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Handling very large numbers in Python
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Python supports a "bignum" integer type which can work with arbitrarily large numbers. In Pyth...