大约有 10,000 项符合查询结果（耗时：0.0190秒） [XML]
How to view the SQL queries issued by JPA?
...e here):
<property name="openjpa.Log" value="DefaultLevel=WARN,Runtime=INFO,Tool=INFO,SQL=TRACE"/>
DataNucleus (see here):
Set the log category DataNucleus.Datastore.Native to a level, like DEBUG.
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How can I create a two dimensional array in JavaScript?
... Array.from(Array(2), () => new Array(4));
arr[0][0] = 'foo';
console.info(arr);
The same trick can be used to Create a JavaScript array containing 1...N
Alternatively (but more inefficient 12% with n = 10,000)
Array(2).fill(null).map(() => Array(4))
The performance decrease com...
Print only?
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@asprin warning! This is not mess free code. Using innerHTML to wipe out then recreate the whole body is fine for simple pages, but with more advanced customizations (menus, slideshows, etc.) it could erase some dynamic behaviors added by other scripts.
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Advantages to Using Private Static Methods
...s not using any instance member, and you get this documentation almost for free
– frandevel
Apr 30 '14 at 7:29
20
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How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
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Install Microsoft SQL Management Studio, which you can download for free from Microsoft's website:
Version 2008
Microsoft SQL Management Studio 2008 is part of SQL Server 2008 Express with Advanced Services
Version 2012
Click download button and check ENU\x64\SQLManagementStudio_x6...
Cost of storing AMI
...he actual space taken up on the snapshot itself. A 70GB snapshot with 40GB free and a 70GB with no space free will be both be billed at the same rate
– ShaneC
Dec 7 '15 at 12:05
6
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How do I focus on one spec in jasmine.js?
... it isn't in jasmine. this is allowed by test runners like karma. for more info read on: github.com/pivotal/jasmine/pull/309
– p1100i
Aug 12 '14 at 9:08
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How to list the contents of a package using YUM?
...ING
/usr/share/doc/time-1.7/NEWS
/usr/share/doc/time-1.7/README
/usr/share/info/time.info.gz
On at least one RH system, with rpm v4.8.0, yum v3.2.29, and repoquery v0.0.11, repoquery -l rpm prints nothing.
If you are having this issue, try adding the --installed flag: repoquery --installed -l rpm...
Favorite (Clever) Defensive Programming Best Practices [closed]
...urrent languages are Java and Objective-C (with a background in C++), feel free to answer in any language. Emphasis here would be on clever defensive techniques other than those that 70%+ of us here already know about. So now it is time to dig deep into your bag of tricks.
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How do you implement a private setter when using an interface?
...s because the interface only defines the minimum methods/accessors. You're free to add more for when you're using the object directly. Though when using an object as the interface type only those methods/accessors defined in the interface are useable.
– Marcello Nicoletti
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