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What's faster, SELECT DISTINCT or GROUP BY in MySQL?
... even a DISTINCT+ORDER BY might still be faster than a GROUP BY due to the extra hints for the optimizer as explained by SquareCog.
– rustyx
Jan 25 '15 at 15:03
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how to delete all cookies of my website in php
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There's no difference so far as I can tell (except the extra work).
– jasonbar
Feb 22 '10 at 12:35
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T-SQL: Deleting all duplicate rows but keeping one [duplicate]
...ed I know there are some duplicates in this table.
I need to eliminate the extra rows from the perspective of the key columns. Some other columns may have slightly different data but I do not care about that. I still need to keep one of these rows however. SELECT DISTINCT won't work because it ope...
Should I use s and s inside my s?
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For me, the unordered lists are extra markup that aren't really required. When I look at an HTML document, I want it to be as clean and easy to read as possible. It's already clear to the viewer that a list is being presented if proper indentation is used...
How to downgrade or install an older version of Cocoapods
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Great extra detail about the alternative install folders – I needed that, thank you.
– Benjohn
Jul 2 at 9:29
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What's the shortest code to cause a stack overflow? [closed]
...LL (relative call) is smaller still (not global memory, so no need for the extra 2 bytes):
RCALL $
1101 1000 0000 0000
So the smallest on the PIC18 is a single instruction, 16 bits (two bytes). This would take 2 instruction cycles per loop. At 4 clock cycles per instruction cycle you've got 8 c...
How does delete[] “know” the size of the operand array?
... but to get the size myself in that same function I have to pass around an extra parameter. Does that make any sense?
– Mark Ruzon
Jun 11 '09 at 0:16
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How to convert linq results to HashSet or HashedSet
... frequently anonymous types come up in LINQ, I think it's worth taking the extra step.
– Jon Skeet
Aug 12 '10 at 21:06
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MFC Grid control 2.27 - C/C++ - 清泛网移动版 - 专注IT技能提升
...too badly . Joe was kind enough to allow me to release the source with no strings attached (since it is based on his code) but since the project was such a marathon I am placing a couple of very minor conditions on the use of this code:
This code may be used in compiled form in any way you desi...
MFC Grid control 2.27 - C/C++ - 清泛网移动版 - 专注IT技能提升
...too badly . Joe was kind enough to allow me to release the source with no strings attached (since it is based on his code) but since the project was such a marathon I am placing a couple of very minor conditions on the use of this code:
This code may be used in compiled form in any way you desi...