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Why use a READ UNCOMMITTED isolation level?
...ain:
Snapshots rely on an entirely new data change tracking method ... more than just a slight logical change, it requires the server to handle the data physically differently. Once this new data change tracking method is enabled, it creates a copy, or snapshot of every data change. By reading t...
What is the difference between is_a and instanceof?
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One more thing to note about is_a vs the instanceof operator is that is_a will accept expressions for the second parameter, while instanceof wont. For example is_a($object, 'Prefix_'.$name) works while $object instanceof 'Prefix_...
Multiple Inheritance in C#
Since multiple inheritance is bad (it makes the source more complicated) C# does not provide such a pattern directly. But sometimes it would be helpful to have this ability.
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How to check if a String contains any of some strings
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Here's a LINQ solution which is virtually the same but more scalable:
new[] { "a", "b", "c" }.Any(c => s.Contains(c))
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How can I find out what FOREIGN KEY constraint references a table in SQL Server?
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You should use the more focused sys.tables rather than sys.objects
– marc_s
Jul 6 '13 at 10:16
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Querying DynamoDB by date
... would want to use a global secondary index on the "CreatedAt" field.
For more on DynamoDB secondary indexes see the secondary index documentation
Original Answer:
DynamoDB does not allow indexed lookups on the range key only. The hash key is required such that the service knows which partition ...
What is a deadlock?
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So deadlock is more of two processes with locked resources waiting for those resources to be released..
– rickyProgrammer
Sep 28 '17 at 17:46
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javascript regex - look behind alternative?
...th lookbehind doesn't match 2filename.js, but the regex given here does. A more appropriate one would be ^(?!.*filename\.js$).*\.js$. This means, match any *.js except *filename.js.
– weibeld
May 16 '17 at 5:16
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What programming practice that you once liked have you since changed your mind about? [closed]
...use/complicate
//things but can make the code hard to follow. Now I spend more time on
//improving the simplicity and readability of the code and inserting fewer yet
//relevant comments, instead of spending that time writing overly-descriptive
//commentaries all throughout the code.
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SVG drop shadow using css3
...dow is defined to work on CSS boxes (read: rectangles), while svg is a bit more expressive than just rectangles. Read the SVG Primer to learn a bit more about what you can do with SVG filters.
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