大约有 43,000 项符合查询结果（耗时：0.0230秒） [XML]
How to concatenate text from multiple rows into a single text string in SQL server?
...any relationships. In SQL 2005 I found that XML PATH method can handle the concatenation of the rows very easily.
If there is a table called STUDENTS
SubjectID StudentName
---------- -------------
1 Mary
1 John
1 Sam
2 Alaina
2 ...
Returning value that was passed into a method
...lt;string>())
.Returns((string a, string b, string c) => string.Concat(a,b,c));
You always need to reference all the arguments, to match the method's signature, even if you're only going to use one of them.
shar...
How to create a video from images with FFmpeg?
....txt like below.
# this is a comment details https://trac.ffmpeg.org/wiki/Concatenate
file 'E:\images\png\images__%3d.jpg'
file 'E:\images\jpg\images__%3d.jpg'
Sample usage as follows;
"h:\ffmpeg\ffmpeg.exe" -y -r 1/5 -f concat -safe 0 -i "E:\images\imagepaths.txt" -c:v libx264 -vf "fps=25,form...
In log4j, does checking isDebugEnabled before logging improve performance?
...en it involves invocation of the toString() methods of various objects and concatenating the results.
In the given example, the log message is a constant string, so letting the logger discard it is just as efficient as checking whether the logger is enabled, and it lowers the complexity of the code...
unit testing of private functions with mocha and node.js
...pi
}())
And your grunt tasks like that
grunt.registerTask("test", [
"concat",
"jshint",
"jasmine"
])
grunt.registerTask("deploy", [
"concat",
"strip-code",
"jshint",
"uglify"
])
More deeper
In a later article, it explains the "why" of "testing private methods"
...
How to use ng-repeat without an html element
...
var flat = [];
$scope.myData.forEach(function (item) {
flat.concat(item);
}
return flat;
}
}
And then in the HTML:
<table>
<tbody>
<tr ng-repeat="item in flattened()"><td>{{item}}</td></tr>
</tbody>
</table>
...
Append TimeStamp to a File Name
...c string AppendTimeStamp(this string fileName)
{
return string.Concat(
Path.GetFileNameWithoutExtension(fileName),
DateTime.Now.ToString("yyyyMMddHHmmssfff"),
Path.GetExtension(fileName)
);
}
}
...
How to merge a list of lists with same type of items to a single list of items?
...es, convert each TSource in the list into an IEnumerable of TResults, then concatenate all those IEnumerables into one big one. In this case you have a list of lists to start, so if you want to concatenate them the function to map from a TSource (which is an IEnumerable of TResults) to an IEnumerabl...
Generate random password string with requirements in javascript
... return x[Math.floor(Math.random() * x.length)];
}).join('');
}).concat().join('').split('').sort(function(){
return 0.5-Math.random();
}).join('')
}
// invoke like so: randPassword(5,3,2);
Same thing, as a 2-liner (admittedly, very long and ugly lines-- and won't be a 1-liner if ...
How do I add more members to my ENUM-type column in MySQL?
... and column_name=@column_name;
set @tmp = insert(@tmp, instr(@tmp,')'), 0, concat(',\'', @new_enum, '\'') );
set @tmp = concat('alter table ', @table_name, ' modify ', @column_name, ' ', @tmp);
prepare stmt from @tmp;
execute stmt;
deallocate prepare stmt;
...