大约有 6,887 项符合查询结果(耗时:0.0206秒) [XML]
Maximum number of records in a MySQL database table
... @Ext3h, Sphinx Search is usually a better choice than fulltext indexes in either MyISAM or InnoDB.
– Bill Karwin
Jan 31 '14 at 2:57
1
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Is there a better alternative than this to 'switch on type'?
...building a dictionary specifically for this purpose you could overload the indexer to return the key type's value, or if missing then its superclass, if that's missing then that superclass, etc., until there's nothing left.
– Erik Forbes
Feb 4 '09 at 23:26
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How to retrieve a single file from a specific revision in Git?
...in the "source" (-s) commit SHA1 or branch somebranch.
To restore also the index:
git restore -s <SHA1> -SW -- afile
(-SW: short for --staged --worktree)
Using low-level git plumbing commands
Before git1.5.x, this was done with some plumbing:
git ls-tree <rev>
show a list of one or more...
How to parse a CSV file using PHP [duplicate]
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Just discovered a handy way to get an index while parsing. My mind was blown.
$handle = fopen("test.csv", "r");
for ($i = 0; $row = fgetcsv($handle ); ++$i) {
// Do something will $row array
}
fclose($handle);
Source: link
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What is the official “preferred” way to install pip and virtualenv systemwide?
... Pip is now bundled with it.
See: https://docs.python.org/2.7//installing/index.html
If not :
Update (from the release notes):
Beginning with v1.5.1, pip does not require setuptools prior to running get-pip.py. Additionally, if setuptools (or distribute) is not already installed, get-pip.py wil...
How to generate a Dockerfile from an image?
... /etc/apt/apt.conf.d/docker-no-languages
&& echo 'Acquire::GzipIndexes "true"; Acquire::CompressionTypes::Order:: "gz";' > /etc/apt/apt.conf.d/docker-gzip-indexes
&& echo 'Apt::AutoRemove::SuggestsImportant "false";' > /etc/apt/apt.conf.d/docker-autoremove-suggests
RUN ...
How do I check if an object has a specific property in JavaScript?
...o 175 bytes when minified. It is also insightful to look at the lodash.has/index.js to see how a very popular and trusted library works.
– Brian M. Hunt
Sep 4 '14 at 19:41
9
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What are the default access modifiers in C#?
...y, the return type and the parameter types of any member that is a method, indexer, or delegate must be at least as accessible as the member itself. For example, you cannot have a public method M that returns a class C unless C is also public. Likewise, you cannot have a protected property of type A...
How can I select rows with most recent timestamp for each key value?
...and s1.timestamp = s2.mts" is not nessesary IMHO. And yet, I advise create index on two fields: sensorID+timestamp - query speed increases great!
– Igor
Apr 4 '17 at 7:57
add ...
Elegant Python function to convert CamelCase to snake_case?
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There's an inflection library in the package index that can handle these things for you. In this case, you'd be looking for inflection.underscore():
>>> inflection.underscore('CamelCase')
'camel_case'
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