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In MySQL queries, why use join instead of where?
...r more tables, we can either use join or where. What are the advantages of one over the other?
6 Answers
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Primary key or Unique index?
...so implies NOT NULL, but a unique index can be nullable.
There can be only one primary key, but there can be multiple unique indexes.
If there is no clustered index defined then the primary key will be the clustered index.
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What's the difference between libev and libevent?
...r structures are big because they combine I/O, time and signal handlers in one, the extra components such as the http and dns servers suffered from bad implementation quality and resultant security issues, and timers were inexact and didn't cope well with time jumps.
Libev tried to improve each of ...
What is the difference between `git merge` and `git merge --no-ff`?
...ast-forward merge didn't create a merge commit, while the non-fast-forward one did.
– Cascabel
Jan 30 '12 at 20:28
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How to replace local branch with remote branch entirely in Git?
... fetch origin remote_branch
Rebuild the local branch based on the remote one: git checkout -b local_branch origin/remote_branch
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How to change language of app when user selects language?
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Good solutions explained pretty well here. But Here is one more.
Create your own CustomContextWrapper class extending ContextWrapper and use it to change Locale setting for the complete application.
Here is a GIST with usage.
And then call the CustomContextWrapper with saved lo...
What is Shelving in TFS?
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Shelving has many uses. The main ones are:
Context Switching: Saving the work on your current task so you can switch to another high priority task. Say you're working on a new feature, minding your own business, when your boss runs in and says "Ahhh! Bug ...
Accessing nested JavaScript objects and arays by string path
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great stuff; using the lodash library, one can also do: _.get(object, nestedPropertyString);
– ian
Aug 13 '15 at 12:49
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How to get the return value from a thread in python?
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For those wondering this can be done with a list of threads. futures = [executor.submit(foo, param) for param in param_list] The order will be maintained, and exiting the with will allow result collection. [f.result() for f in futures]
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How to generate XML file dynamically using PHP?
... It is possible to specify the encoding with SimpleXml? How it can be done?
– Eineki
Jan 28 '09 at 14:17
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