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Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...ND_ROWS?
Just a quick summary: Peter says that it depends on your indexes and other factors. Many of the comments to the post seem to say that SQL_CALC_FOUND_ROWS is almost always slower - sometimes up to 10x slower - than running two queries.
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How to declare array of zeros in python (or an array of a certain size) [duplicate]
...histogram of counts... so I create buckets.
I know I could just go through and append a bunch of zeros i.e something along these lines:
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Git for Windows: .bashrc or equivalent configuration files for Git Bash shell
I've just installed Git for Windows and am delighted to see that it installs Bash.
12 Answers
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What is the difference between .*? and .* regular expressions?
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It is the difference between greedy and non-greedy quantifiers.
Consider the input 101000000000100.
Using 1.*1, * is greedy - it will match all the way to the end, and then backtrack until it can match 1, leaving you with 1010000000001.
.*? is non-greedy. * w...
How to name factory like methods?
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Some random thoughts:
'Create' fits the feature better than most other words. The next best word I can think of off the top of my head is 'Construct'. In the past, 'Alloc' (allocate) might have been used in similar situations, re...
How to match “anything up until this sequence of characters” in a regular expression?
...s possible to satisfy.
When using .+?, instead of matching all at once and going back for
other conditions (if any), the engine will match the next characters by
step until the subsequent part of the regex is matched (again if any).
This is the un-greedy, meaning match the fewest possi...
What does the 'b' character do in front of a string literal?
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Otherwise, is an answer for somebody who already understands it.
– Rafael Eyng
Oct 18 '19 at 1:37
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show 1 more comment
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Changing Java Date one hour back
...ary of the fact that there is Calendar.HOUR which works with 12 hour clock and Calendar.HOUR_OF_DAY for 24 hour clock: chintat.blogspot.ca/2006/05/…
– Wolf
Apr 27 '15 at 17:24
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.htaccess not working apache
I have a server from AWS EC2 service running on Linux ubuntu and I have installed apache, php, and mysql.
12 Answers
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How to check if two arrays are equal with JavaScript? [duplicate]
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@VarunMadiath the last loop goes through every element and compares them. If the arrays are not sorted then it will fail if the order of the items is not exactly the same.
– enyo
Sep 23 '13 at 15:17
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