大约有 40,000 项符合查询结果（耗时：0.0700秒） [XML]
ORDER BY the IN value list
...n't need a subquery, we can use the set-returning function like a table.
A string literal to hand in the array instead of an ARRAY constructor may be easier to implement with some clients.
Detailed explanation:
PostgreSQL unnest() with element number
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Nullable types and the ternary operator: why is `? 10 : null` forbidden? [duplicate]
.... My requirement was to pass null to an Oracle table number column, when a string is NULL. Against the example above, I managed it like this: cmd.Parameters.Add("2", OracleDbType.Double).Value = String.IsNullOrEmpty(pNumberChar) ? (Double?)null : Convert.ToDouble(pNumberChar);
–...
Why aren't programs written in Assembly more often? [closed]
...different world. In C# you don't think twice about writing this:
foreach (string s in listOfStrings) { /* do stuff */ }
This would be dozens, maybe hundreds of lines of code in assembly, each programmer implementing it would take a different approach, and the next person coming along would have t...
Why can't I inherit static classes?
...class as type. That class has 5 helper methods and 2 methods that return a string (name and description). I might have picked it wrong (I think so), but the only solution I found was to instantiate the class in the generic loader, to access the methods... meh.
– ANeves thinks S...
How to Turn Off Showing Whitespace Characters in Visual Studio IDE
...onment. There are also cases where it's actually critical, such as inside strings that are getting parsed.
– Thought
Jul 6 '14 at 23:30
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MySQL get row position in ORDER BY
... it.
SELECT t,COUNT(*) AS position FROM t
WHERE name <= 'search string' ORDER BY name
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How to create a file in Ruby
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Use:
File.open("out.txt", [your-option-string]) {|f| f.write("write your stuff here") }
where your options are:
r - Read only. The file must exist.
w - Create an empty file for writing.
a - Append to a file.The file is created if it does not exist.
r+ ...
ERROR: Error installing capybara-webkit:
... path to where qt5 is installed. export QMAKE=/usr/local/Cellar/qt5/5.5.1_1/bin/qmake
– Seth Jeffery
Nov 16 '15 at 8:59
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Handling colon in element ID with jQuery
...z" and thus fail.
//You would first have to look for ":" in the id string, then replace it
var jEle = $(document.getElementById(id)); //forget about the fact
//that the id string might contain ':', this always works
}
//just to give an idea that the ID might be coming...
Performing regex Queries with pymongo
...etter to my eyes. Why bother compiling a Python RE if you're just going to stringify it so that Mongo can compile it again? Mongo's $regex operator takes an $options argument.
– Mark E. Haase
May 16 '15 at 15:56
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