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MySQL error: key specification without a key length
...ecause data they contain can be huge, and implicitly DB index will be big, meaning no benefit from index.
MySQL requires that you define first N characters to be indexed, and the trick is to choose a number N that’s long enough to give good selectivity, but short enough to save space. The prefix ...
Do git tags get pushed as well?
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I'm pretty sure that means that the HEAD refs won't get pushed, meaning that you ONLY push the tags.
– Dan Rosenstark
Oct 7 '12 at 21:01
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How do I add a password to an OpenSSH private key that was generated without a password?
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Does this mean you have to log out and in again? Closing the terminal window and re-opening it does not work for me.
– Simon H
Jun 6 '18 at 21:50
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What's the difference between the atomic and nonatomic attributes?
What do atomic and nonatomic mean in property declarations?
26 Answers
26
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How to copy commits from one branch to another?
...one place and merging them into wherever they're needed. Duplicate commits mean an intent never to merge those two branches (if you decide you want to later, you'll get conflicts).
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Maximum size of an Array in Javascript
...s will ensure it never goes over the limit (implementing a circular buffer means that once you get to the end you wrap around to the beginning again - not possible to overrun the end of the array).
For example:
var container = new Array ();
var maxlen = 100;
var index = 0;
// 'store' 1538 items (...
How do you increase the max number of concurrent connections in Apache?
...cess will start 25 threads determined by ThreadsPerChild parameter so this means 2 process can service only 50 concurrent connections/clients i.e. 25x2=50. Now if more concurrent users comes, then another child process will start, that can service another 25 users. But how many child processes can b...
Using the field of an object as a generic Dictionary key
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+1 and I don't mean to hijack this thread but I was under the impression that GetHashCode() should return FooId.GetHashCode(). Is this not the right pattern?
– Ken Browning
Mar 11 '09 at 15:48
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Asserting successive calls to a mock method
... @jpmc26 could you elaborate more on your edit? What do you mean by 'best left unmocked'? How else would you test if a call has been made within a method
– otgw
Dec 15 '15 at 16:04
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Knight's Shortest Path on Chessboard
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What do you mean by unavailable move? A knight can reach any square right!?
– everlasto
Jan 21 '17 at 16:42
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