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What's the best way of implementing a thread-safe Dictionary?
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As Peter said, you can encapsulate all of the thread safety inside the class. You will need to...
Sorting a Python list by two fields
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edited Sep 4 '15 at 8:54
BrechtDeMan
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Primary key or Unique index?
...1 (foo, bar) VALUES (3, 1); -- OK
INSERT INTO table1 (foo, bar) VALUES (1, 4); -- Fails!
Duplicate entry '1' for key 'ux_table1_foo'
The last insert fails because it violates the unique index on column foo when it tries to insert the value 1 into this column for a second time.
In MySQL a unique ...
Better way to check variable for null or empty string?
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edited Jun 14 '18 at 4:58
Akira Yamamoto
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How to merge remote changes at GitHub?
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edited Feb 8 '12 at 9:47
community wiki
2 r...
Where to place private methods in Ruby?
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answered Jun 20 '14 at 19:11
DennisDennis
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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
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stdout and stderr are different streams, even though they both refer to console output by defau...
JSONP with ASP.NET Web API
I am working on creating a new set of services in ASP.MVC MVC 4 using the Web API. So far, it's great. I have created the service and gotten it to work, and now I am trying to consume it using JQuery. I can get back the JSON string using Fiddler, and it seems to be ok, but because the service exi...
How to get the unix timestamp in C#
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You get a unix timestamp in C# by using DateTime.UtcNow and subtracting the epoch time of 1970-0...
How can a LEFT OUTER JOIN return more records than exist in the left table?
...e additional information from a much bigger table. The left table contains 4935 records yet when I LEFT OUTER JOIN it to an additional table the record count is significantly larger.
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