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SQL query to find record with ID not in another table
...but still gold, specific to PostgreSQL though: https://explainextended.com/2009/09/16/not-in-vs-not-exists-vs-left-join-is-null-postgresql/
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How to set up a git project to use an external repo submodule?
...pares them to Subversion's svn:externals mechanism: http://speirs.org/blog/2009/5/11/understanding-git-submodules.html
* As a best practice, you should always place your submodules in their own directory, such as Externals. If you don't, your root project directory can become very cluttered very ...
How to simplify a null-safe compareTo() implementation?
... this case that would not have yielded the cleanest, simplest code.
Edit (2009): Apache Commons Collections version
Actually, here's a way to make the solution based on Apache Commons NullComparator simpler. Combine it with the case-insensitive Comparator provided in String class:
public static f...
When to use CouchDB over MongoDB and vice versa
...uchDB commented on the CouchDB's paging being not as useful.
A dated (Jun 2009) benchmark by Kristina Chodorow (part of team behind MongoDB),
I'd go for MongoDB.
Hope it helps.
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Specify custom Date format for colClasses argument in read.table/read.csv
...",..: 3 3 1 1 1 1 2 2 3 1
## $ actual_finish: Date, format: "2008-10-15" "2009-10-19" NA "2008-10-11" ...
I think @Greg Snow's answer is far better, as it does not change the default behaviour of an often used function.
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How can I ignore a property when serializing using the DataContractSerializer?
...rry). Besides, looking at this answer's date should have ringed a bell.... 2009 .NET 4.5 post...) Sorry for wasting your time.
– Pluc
Mar 7 '13 at 21:16
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Teachable Machine 图像分类扩展 · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
TCPClient TCP客户端扩展：连接TCP服务器进行文本消息通信 · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
What is so bad about singletons? [closed]
...st to comment on this, please see the link below. jorudolph.wordpress.com/2009/11/22/singleton-considerations
– Johannes Rudolph
Nov 22 '09 at 14:35
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How to free memory in Java?
...arded objects.
Not recommended.
Edit: I wrote the original response in 2009. It's now 2015.
Garbage collectors have gotten steadily better in the ~20 years Java's been around. At this point, if you're manually calling the garbage collector, you may want to consider other approaches:
If you'...