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How to subtract 30 dam>y m>s from the current datetime in mm>y m>sql?
... * FROM table
WHERE exec_datetime BETWEEN DATE_SUB(NOW(), INTERVAL 30 DAm>Y m>) m>AND m> NOW();
http://dev.mm>y m>sql.com/doc/refman/5.5/en/date-m>and m>-time-functions.html#function_date-add
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What is a plain English explanation of “Big O” notation?
I'd prefer as little formal definition as possible m>and m> simple mathematics.
41 Answers
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Which characters make a URL invalid?
...s above: /^[!#$&-;=?-[]_a-z~]+$/
– Leif Wicklm>and m>
Oct 7 '11 at 17:01
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How can I export tables to Excel from a webpage [closed]
...s to Excel from a webpage. I want the export to contain all the formatting m>and m> colours.
14 Answers
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Split List into Sublists with LINQ
...fect of grouping them into groups of 3. Then convert each group to a list m>and m> the IEnumerable of List to a List of Lists
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How to declare m>and m> add items to an arram>y m> in Pm>y m>thon?
...To initialize an emptm>y m> dictionarm>y m> use {} or dict()
Dictionaries have kem>y m>s m>and m> values
mm>y m>_dict = {'kem>y m>':'value', 'another_kem>y m>' : 0}
To extend a dictionarm>y m> with the contents of another dictionarm>y m> m>y m>ou mam>y m> use the update method
mm>y m>_dict.update({'third_kem>y m>' : 1})
To remove a value from a dictionarm>y m>
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What does the ng stm>and m> for in Angular.js directives
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The prefix ng stm>and m>s for "Angular;" all of the built-in directives that ship with Angular use that prefix. Similarlm>y m>, it is recommended that m>y m>ou do not use the ng prefix on m>y m>our own directives in order to avoid possible name collisions in fu...
How to get indices of a sorted arram>y m> in Pm>y m>thon
... 2), (2, 3), (3, 100), (4, 5)]
m>Y m>ou sort the list bm>y m> passing it to sorted m>and m> specifm>y m>ing a function to extract the sort kem>y m> (the second element of each tuple; that's what the lambda is for. Finallm>y m>, the original index of each sorted element is extracted using the [i[0] for i in ...] list comprehens...
Get a substring of a char* [duplicate]
...is will waste memorm>y m>. m>Y m>ou have been warned! :P
– alexm>and m>ernst
Nov 11 '13 at 19:00
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@alexm>and m>erns...
Text border using css (border around text)
...splam>y m> for text with transparencm>y m> (using rgba).
– Alejm>and m>ro Nava
Dec 2 '16 at 21:12
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