大约有 47,000 项符合查询结果（耗时：0.0582秒） [XML]
What is the use of ByteBuffer in Java? [closed]
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This is a good description of its uses and shortcomings. You essentially use it whenever you need to do fast low-level I/O. If you were going to implement a TCP/IP protocol or if you were writing a database (DBMS) this class would come in handy.
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Replacing NULL with 0 in a SQL server query
...u want to replace a possibly null column with something else, use IsNull.
SELECT ISNULL(myColumn, 0 ) FROM myTable
This will put a 0 in myColumn if it is null in the first place.
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Loader lock error
...g -> Exceptions, open the Managed Debugging Assistants, find LoaderLock and uncheck
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Failed to locate the winutils binary in the hadoop binary path
.... I didn't find winutils exe file in hadoop bin folder. I tried below commands
15 Answers
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IEnumerable vs List - What to Use? How do they work?
...some doubts over how Enumerators work, and LINQ. Consider these two simple selects:
10 Answers
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Detect when an HTML5 video finishes
...pt'>
document.getElementById('myVideo').addEventListener('ended',myHandler,false);
function myHandler(e) {
// What you want to do after the event
}
</script>
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Extracting hours from a DateTime (SQL Server 2005)
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SELECT DATEPART(HOUR, GETDATE());
DATEPART documentation
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JavaScript string newline character?
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<textarea id="test" name="test">
</textarea>
IE8 and Opera 9 on Windows use \r\n. All the other browsers I tested (Safari 4 and Firefox 3.5 on Windows, and Firefox 3.0 on Linux) use \n. They can all handle \n just fine when setting the value, though IE and Opera will conver...
How to change Xcode Project name
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For Xcode 4 or later:
Open a project
Select Project Navigator
Highlight project name
Single click on project name
For Xcode 3:
Open a project > Menu > Project > Rename ...
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Can Go compiler be installed on Windows?
... for a Windows compiler, but I can't seem to find it. I can only see Linux and OS X compilers. Does anyone know if Go programming can be done on Windows, or is it something that Google hasn't implemented yet?
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