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How important is the order of columns in indexes?
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Look at an index like this:
Cols
1 2 3
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| | 1 | |
| A |---| |
| | 2 | |
|---|---| |
| | | |
| | 1 | 9 |
| B | | |
| |---| |
| | 2 | |
| |---| |
| | 3 | |
|---|---| |
See how restricting on A first, as your...
Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
... This clock wraps around once it tops out (this typically happens after ~2^32 ticks, which is not very long for a 1 MHz clock). man clock says that since glibc 2.18 it is implemented with clock_gettime(CLOCK_PROCESS_CPUTIME_ID, ...) in Linux.
clock_gettime(CLOCK_MONOTONIC, ...) provides nanosecond ...
C#: Raising an inherited event
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Official guidelines: msdn.microsoft.com/en-us/library/w369ty8x(VS.80).aspx
– meandmycode
Apr 16 '09 at 14:17
5
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How to initialize all members of an array to the same value?
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23 Answers
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How to listen for changes to a MongoDB collection?
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edited Mar 19 '17 at 5:33
jtlindsey
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answered M...
What are the use-cases for Web Workers? [closed]
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3 Answers
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What is the usefulness of PUT and DELETE HTTP request methods?
...source with that URI …
For the full specification visit:
http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html
Since current browsers unfortunately do not support any other verbs than POST and GET in HTML forms, you usually cannot utilize HTTP to it's full extent with them (you can still hij...
How can sbt pull dependency artifacts from git?
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answered Sep 26 '11 at 3:40
Kipton BarrosKipton Barros
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Why are trailing commas allowed in a list?
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edited Nov 27 '17 at 0:35
user2357112 supports Monica
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How do I pull from a Git repository through an HTTP proxy?
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You can also set the HTTP proxy that Git uses in global configuration property http.proxy:
git ...