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postgresql port confusion 5433 or 5432?
I have installed postgresql on OSX. When I run psql, I get
7 Answers
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ASP.NET Identity DbContext confusion
...s with this piece of code in IdentityModels.cs - this piece of code is for all the ASP.NET Identity operations for the default templates:
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Is there a timeout for idle PostgreSQL connections?
...th <idle> in transaction sessions, but with too many connections overall.
Killing connections is not the right answer for that, but it's an OK-ish temporary workaround.
Rather than re-starting PostgreSQL to boot all other connections off a PostgreSQL database, see: How do I detach all other ...
Places where JavaBeans are used?
What is a JavaBean and why do I need it? Since I can create all apps with the class and interface structure? Why do I need beans? And can you give me some examples where beans are essential instead of classes and interfaces?
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BLE（四）嗅探工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
文章源自：https://www.gandalf.site/2018/11/ble_26.html
商业级的Ellisys BEX400侦听工具最为符合对BLE流量捕获及分析的要求，然而售价过于昂贵；
其次，作为开源硬件且配有混杂模式追踪的“超牙”设备——Ubertooth One拥有二次开发和嗅...
Can I set null as the default value for a @Value in Spring?
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This is really old, but you can use Spring EL now, e.g.
@Value("${stuff.value:#{null}}")
See this question.
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Embedding Base64 Images
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Update: 2017-01-10
Data URIs are now supported by all major browsers. IE supports embedding images since version 8 as well.
http://caniuse.com/#feat=datauri
Data URIs are now supported by the following web browsers:
Gecko-based, such as Firefox, SeaMonkey, XeroBan...
Optimum way to compare strings in JavaScript? [duplicate]
... Jan 30 '10 at 10:55
Daniel VassalloDaniel Vassallo
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Logging levels - Logback - rule-of-thumb to assign log levels
...y requires human intervention. The "2AM rule" applies here- if you're on call, do you want to be woken up at 2AM if this condition happens? If yes, then log it as "error".
warn: an unexpected technical or business event happened, customers may be affected, but probably no immediate human intervent...
What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
...rovides high performance, regular, multi-dimensional, shape polymorphic parallel arrays. All numeric data is stored unboxed. Functions written with the Repa combinators are automatically parallel provided you supply +RTS -Nwhatever on the command line when running the program.
Recently, it has bee...