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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...back h6 { margin-top: 0 !important; margin-bottom: 0 !important; color:#333; } .feedback-pop { position: fixed; right: 4px; top: 40%; background: #fff; box-sizing: border-box; border-radius: 4px; font-size: 15px; color: #1a1a1a; text-align: center; cursor: pointer; padding: 12px ...
Hibernate vs JPA vs JDO - pros and cons of each? [closed]
...o be considered based on such factors legacy code, integration, expertise, batch-heavy requirements, real-time performance etc. which may steer (or may not) approach towards different database technology stack.
– topchef
Jun 4 '10 at 16:04
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Likelihood of collision using most significant bits of a UUID in Java
...you could have a central database table for allocating unique ids, or even batches of unique ids.
If you just need to have uniqueness in one app you can just have a counter (or a counter which starts from the currentTimeMillis()*1000 or nanoTime() depending on your requirements)
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Passing arguments to “make run”
...t is good for: building. it uses a shell script to do what it is good for: batch processing.
plus you can do whatever else you might need with the full flexibility and expressiveness of a shell script without all the caveats of a makefile.
also the calling syntax is now practically identical:
$ ....
What does “Could not find or load main class” mean?
... I've encountered it a third time. I've run the program from a Windows 10 batch file, and put the .jar name in a variable (called with "-cp %jarname%;lib*"). I've mistakenly put an extra space at the end of the jarname, and it caused the error. Hat trick :)
– GregT
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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...back h6 { margin-top: 0 !important; margin-bottom: 0 !important; color:#333; } .feedback-pop { position: fixed; right: 4px; top: 40%; background: #fff; box-sizing: border-box; border-radius: 4px; font-size: 15px; color: #1a1a1a; text-align: center; cursor: pointer; padding: 12px ...
Is String.Format as efficient as StringBuilder
...d when a user clicks a button now and again. Unless you're doing some huge batch processing job I'd stick with String.Format, it aids code readability. If you suspect a perf bottleneck then stick a profiler on your code and see where it really is.
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How to wait for all goroutines to finish without using time.Sleep?
...eed to load and parse the first page before you know the size of the first batch of child pages.
I wrote a solution using channels, avoiding waitGroup in my solution the the Tour of Go - web crawler exercise. Each time one or more go-routines are started, you send the number to the children channe...
数据存储组件 · App Inventor 2 中文网
...back h6 { margin-top: 0 !important; margin-bottom: 0 !important; color:#333; } .feedback-pop { position: fixed; right: 4px; top: 40%; background: #fff; box-sizing: border-box; border-radius: 4px; font-size: 15px; color: #1a1a1a; text-align: center; cursor: pointer; padding: 12px ...
Check if pull needed in Git
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How can I use this in a (Ubuntu) batch file, so that I can run other commands just in the case this command shows that a pull is needed?
– Ulysses Alves
Jun 8 '16 at 13:40
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