大约有 45,000 项符合查询结果（耗时：0.0545秒） [XML]
Using current time in UTC as default value in PostgreSQL
...rap it in a function:
create function now_utc() returns timestamp as $$
select now() at time zone 'utc';
$$ language sql;
create temporary table test(
id int,
ts timestamp without time zone default now_utc()
);
shar...
Targeting .NET Framework 4.5 via Visual Studio 2010
...r (Build -> Configuration Manager) make sure the ".NET 4.5" platform is selected for your project.
Still in the configuration manager, create a new solution platform for ".NET 4.5" (you can base it off "Any CPU") and make sure ".NET 4.5" is selected for the solution.
Build your project and check ...
adb not finding my device / phone (MacOS X)
...you can get to it via the Apple Menu in the top left corner of the screen, select "About this Mac", then click the "More Info..." button. Screen grab here:
Expand the "Hardware" tree, select "USB", then look for your target device. In the above example, my device is named "SomeDevice" (I did tha...
What is __stdcall?
...ll Scene::ExecuteCommand(void* command)
{
return system(static_cast<char*>(command));
}
OrderBy descending in Lambda expression?
... orderby person.Name descending, person.Age descending
select person.Name;
is equivalent to:
var query = people.OrderByDescending(person => person.Name)
.ThenByDescending(person => person.Age)
.Select(person => person.Name);
...
Trim a string based on the string length
I want to trim a string if the length exceeds 10 characters.
11 Answers
11
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Getting raw SQL query string from PDO prepared statements
...the principle is the same.
081016 16:51:28 2 Query prepare s1 from 'select * from foo where i = ?'
2 Prepare [2] select * from foo where i = ?
081016 16:51:39 2 Query set @a =1
081016 16:51:47 2 Query execute s1 using @a
2 Execute [2] select...
How to specialize std::hash::operator() for user-defined type in unordered containers?
... slap them on the wrists already at the stage where their class contains a char*!
– Kerrek SB
Nov 16 '11 at 22:12
Hmm....
“R cannot be resolved to a variable”? [duplicate]
...test build tools, your project target is set to the earlier one by import. Selecting project build to recent android version availble on you dev env will solve the issue. Ex: For me, by import project build target was being set to Android 4.4.2. This was giving the error. I changed it to Android 5.0...
Java RegEx meta character (.) and ordinary dot?
In Java RegEx, how to find out the difference between . (dot) the meta character and the normal dot as we using in any sentence. How to handle this kind of situation for other meta characters too like ( * , + , \d ,...)
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