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How do you check if a certain index exists in a table?

...ropping and Creating an index on a large table is an expensive operation - esp if the existing index is already the one you want. This statement is good for one-step replacement. It doesn't compare the existing index - rather a brute force "do this, even if existing - drop it...just do it, get'r ...
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Can my enums have friendly names? [duplicate]

... So annoying when posts don't include the non-default namespaces that they reference... System.ComponentModel and System.Reflection – musefan Jan 24 '12 at 10:24 ...
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Iterate over the lines of a string

...ry fast ways; putting strings together by programming at a very low level (esp. by loops of += of very small pieces) can be quite slow. Edit: added @Jacob's proposal, slightly modified to give the same results as the others (trailing blanks on a line are kept), i.e.: from cStringIO import StringIO...
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MongoDB logging all queries

... this is the most complete response to the OP. esp. regarding the 'tail-able' requirement. – Luke W Dec 1 '16 at 15:12 add a com...
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Why does modern Perl avoid UTF-8 by default?

...=>"is",level => 1)->eq("d", " ð") is false. Similarly, "ae" and "æ" are eq if you don’t use locales, or if you use the English one, but they are different in the Icelandic locale. Now what? It’s tough, I tell you. You can play with ucsort to test some of these things out. Consider ...
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What does the “>” (greater-than sign) CSS selector mean?

... IE6 if it matters for your projects, OK everywhere else. This resource is esp. useful for siblings, :nth-child() etc where support is still incomplete – FelipeAls Jul 12 '10 at 4:59 ...
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How do you automatically set the focus to a textbox when a web page loads?

... answered Sep 5 '08 at 13:35 EspoEspo 38.8k2020 gold badges126126 silver badges156156 bronze badges ...
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How does this CSS produce a circle?

...r resources References W3C: CSS Backgrounds and Borders Module Level 3 (esp. 5. Rounded Corners) Demonstrations Please open the demo below, which shows how the border-radius affects the border (think of the inner blue box as the content box, the inner black border as the padding border, the e...
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.NET JIT potential error?

...IT. // save context 00000000 push ebp 00000001 mov ebp,esp 00000003 push edi 00000004 push esi 00000005 push ebx // put oDoesSomething pointer in ebx 00000006 mov ebx,ecx // zero out edi, this will store oVec.y 00000008 xor edi,...
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Find a Pull Request on Github where a commit was originally created

... @esp Interesting. I see a list of PR, but not their SHA1 commit marking their integration. – VonC Jun 8 '17 at 22:34 ...