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PostgreSQL naming conventions
...le:
UPDATE my_table SET name = 5;
This is not written in stone, but the bit about identifiers in lower case is highly recommended, IMO. Postgresql treats identifiers case insensitively when not quoted (it actually folds them to lowercase internally), and case sensitively when quoted; many people ...
Using a bitmask in C#
...
bool karenIsIncluded = (names & Names.Karen) != Names.None;
Logical bitwise combinations can be tough to remember, so I make life easier on myself with a FlagsHelper class*:
// The casts to object in the below code are an unfortunate necessity due to
// C#'s restriction against a where T : E...
SQL query to get all values a enum can have
...e same enum in more than one schema, this might need to be narrowed down a bit. If that's the case, see postgresql.org/docs/current/static/catalog-pg-type.html for details.
– Kev
Oct 23 '09 at 22:03
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How do disable paging by swiping with finger in ViewPager but still be able to swipe programmaticall
...istener to pager, if I fling left, the UI will still move to left a little bit.
– Chris.Zou
Feb 26 '13 at 6:24
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How to run cron once, daily at 10pm
...in GMT).
– nnsense
Apr 24 '19 at 18:10
I upvoted this answer but I did know this rule... anyway I wanted to confirm my...
Merging dictionaries in C#
... .ToDictionary(group => group.Key, group => group.First());
It's a bit ugly - and inefficient - but it's the quickest way to do it in terms of code. (I haven't tested it, admittedly.)
You could write your own ToDictionary2 extension method of course (with a better name, but I don't have tim...
How do I create a list of random numbers without duplicates?
I tried using random.randint(0, 100) , but some numbers were the same. Is there a method/module to create a list unique random numbers?
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Which version of C# am I using
...ows\Microsoft.NET\Framework\v4.0.30319>csc /?
Microsoft (R) Visual C# 2010 Compiler version 4.0.30319.1
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你真的了解熊市有多么可怕吗？ - 创意 - 清泛网 - 专注C/C++及内核技术
...小时跌了46%还多。有的股票在一周内的成交量为零。来了100个贼，被消灭了95个，剩下的成了精，死不了，活下来了。
熊市的初级阶段：经历股价的大幅上涨以后，很多股票长了几倍甚至几十倍，这时候市场上该炒的股票都炒...
Loadbalancing web sockets
...ashed source-IP-port) it will scale to wire speed on low-end hardware (say 10GbE). Since the distribution is deterministic (using hashed source-IP-port), it will work with TCP (and hence WebSocket).
Also note that a 64k hard limit only applies to outgoing TCP/IP for a given (source) IP address. It ...