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Text-align class for inside a table
... This does not work for table cells unfortunately. It may simply be a CSS order issue. See this issue [github.com/twitter/bootstrap/issues/6837]. Should be fixed in version 3.0.
– David
Apr 5 '13 at 17:05
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SQL Server IN vs. EXISTS Performance
...e).
Both forms can be converted to join forms internally, have the join order reversed, and run as loop, hash or merge--based on the estimated row counts (left and right) and index existence in left, right, or both sides.
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getting the last item in a javascript object
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No. Order is not guaranteed in JSON and most other key-value data structures, so therefore the last item could sometimes be carrot and at other times be banana and so on. If you need to rely on ordering, your best bet is to go wi...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
... the collection, and it's commutativity that makes cumulating easy because order is not important (so it doesn't matter which order to aggregate each of the results from each of the chunks). Strictly speaking commutativity is not necessary for parallelization, for example distributed sorting algorit...
Using std Namespace
...er support for a non-throwing swap" from Effective C++, Third Edition. In order to have a generic, templated function use the 'best' swap method for a parameterized type, you need to make use of a using-declaration and argument dependant lookup (aka ADL or Koenig lookup):
template< typename T &...
How efficient is locking an unlocked mutex? What is the cost of a mutex?
...thread to sleep; that is obviously extremely slow (system calls are in the order of 10 mircoseconds). Normally that is not really a problem because that thread has to sleep anyway-- but it could be a problem with high contention where a thread can't obtain the lock for the time that it normally spin...
Python: List vs Dict for look up table
... be slower for strings, impossible for objects which do not have a natural ordering.
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Does the join order matter in SQL?
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For INNER joins, no, the order doesn't matter. The queries will return same results, as long as you change your selects from SELECT * to SELECT a.*, b.*, c.*.
For (LEFT, RIGHT or FULL) OUTER joins, yes, the order matters - and (updated) things are...
MySQL: Order by field size/length
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SELECT * FROM TEST ORDER BY LENGTH(description) DESC;
The LENGTH function gives the length of string in bytes. If you want to count (multi-byte) characters, use the CHAR_LENGTH function instead:
SELECT * FROM TEST ORDER BY CHAR_LENGTH(descri...
Python list sort in descending order
How can I sort this list in descending order?
6 Answers
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