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Does Foreign Key improve query performance?
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187
Foreign Keys are a referential integrity tool, not a performance tool. At least in SQL Server, ...
Add number of days to a date
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edited Feb 25 '10 at 8:53
answered Feb 25 '10 at 8:46
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What would cause an algorithm to have O(log n) complexity?
...ou get a number less than or equal to one? For 16, we have that
16 / 2 = 8
8 / 2 = 4
4 / 2 = 2
2 / 2 = 1
Notice that this ends up taking four steps to complete. Interestingly, we also have that log2 16 = 4. Hmmm... what about 128?
128 / 2 = 64
64 / 2 = 32
32 / 2 = 16
16 / 2 = 8
8 / 2...
What is the difference between NULL, '\0' and 0?
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358
Note: This answer applies to the C language, not C++.
Null Pointers
The integer constant lit...
Is there a best practice for generating html with javascript
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8 Answers
8
Active
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How to get the directory of the currently running file?
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Doesn't work for me play.golang.org/p/c8fe-Zm_bH - os.Args[0] does not necessarily contain the abs path.
– zupa
Feb 13 '15 at 11:43
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ProcessBuilder: Forwarding stdout and stderr of started processes without blocking the main thread
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edited Oct 1 '15 at 18:30
answered Jan 4 '13 at 21:50
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Nginx serves .php files as downloads, instead of executing them
...available/default
Uncomment both listen lines to make nginx listen on port 80 IPv4 and IPv6.
listen 80; ## listen for ipv4; this line is default and implied
listen [::]:80 default_server ipv6only=on; ## listen for ipv6
Leave server_name alone
# Make site accessible (...)
server_name localhost...
Javascript Cookie with no expiration date
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168
2020 - the year of the cookiepocalypse
– JeffreyPia
Apr 18 '16 at 17:57
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How to store decimal values in SQL Server?
...the SQL Server. I need to be able to store values like 15.5, 26.9, 24.7, 9.8, etc
8 Answers
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