大约有 48,000 项符合查询结果（耗时：0.0277秒） [XML]
Notepad++ Multi editing
...
Yes: simply press and hold the Alt key, click and drag to select the lines whose columns you wish to edit, and begin typing.
You can also go to Settings > Preferences..., and in the Editing tab, turn on multi-editing, to enable selection of multiple separate regions or columns o...
Unpivot with column name
...hould be able to use the following which includes the subject in the final select list:
select u.name, u.subject, u.marks
from student s
unpivot
(
marks
for subject in (Maths, Science, English)
) u;
See SQL Fiddle with demo
...
How do I copy to the clipboard in JavaScript?
...
document.body.appendChild(textArea);
textArea.focus();
textArea.select();
try {
var successful = document.execCommand('copy');
var msg = successful ? 'successful' : 'unsuccessful';
console.log('Fallback: Copying text command was ' + msg);
} catch (err) {
consol...
Restore LogCat window within Android Studio
...e bottom). Use the "gear" at the extreme top right of the log cat section; select floating mode. Confusingly it then "appears to be docked" still ... just grab the bar and move it around. (If you're used to Mac, it's a little confusing.) (Android Studio is awesome on Mac eh??)
...
What is the best way to filter a Java Collection?
...without writing loops or inner classes:
List<Person> beerDrinkers = select(persons, having(on(Person.class).getAge(),
greaterThan(16)));
Can you imagine something more readable?
Disclaimer: I am a contributor on lambdaj
...
Is there any performance gain in indexing a boolean field?
...
It depends on the actual queries and the selectivity of the index/query combination.
Case A: condition WHERE isok = 1 and nothing else there:
SELECT *
FROM tableX
WHERE isok = 1
If the index is selective enough (say you have 1M rows and only 1k have isok = 1), ...
Oracle “(+)” Operator
...dize OUTER joins.
The query would be re-written in ANSI-92 syntax as:
SELECT ...
FROM a
LEFT JOIN b ON b.id = a.id
This link is pretty good at explaining the difference between JOINs.
It should also be noted that even though the (+) works, Oracle recommends not using it:
Oracle re...
How do I remove javascript validation from my eclipse project?
...validation all together is too drastic. Fortunately with Eclipse, you can selectively remove some JavaScript sources from validation.
Right-click your project.
Navigate to: Properties → JavaScript → Include Path
Select Source tab. (It looks identical to Java Build Path Source tab.)
Expand Jav...
Select element based on multiple classes
...
You mean two classes? "Chain" the selectors (no spaces between them):
.class1.class2 {
/* style here */
}
This selects all elements with class1 that also have class2.
In your case:
li.left.ui-class-selector {
}
Official documentation : CSS2 class ...
How do I view the SQL generated by the Entity Framework?
...e query = from x in appEntities
where x.id == 32
select x;
var sql = ((System.Data.Objects.ObjectQuery)query).ToTraceString();
or in EF6:
var sql = ((System.Data.Entity.Core.Objects.ObjectQuery)query)
.ToTraceString();
That will give you the SQL that was g...