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Troubleshooting “Illegal mix of collations” error in mysql
...ERE clause will always give the error you posted:
WHERE 'A' COLLATE latin1_general_ci = 'A' COLLATE latin1_general_cs
Your solution is to specify a shared collation for the two columns within the query. Here is an example that uses the COLLATE clause:
SELECT * FROM table ORDER BY key COLLATE lat...
惨不忍睹:说一说你最穷的时候是什么样子 - 创意 - 清泛网 - 专注C/C++及内核技术
...道
@EZ汽车人:在北京一个月吃饭花200
@贰拾壹-_- :拉屎拉一半,怕饿得快。。。。。。
类型二:不敢出门+避免社交型
@螺丝脱落司机:开启免打扰模式,然后各种宅。
@猪脚L:穷到家里待了一个星...
Python's many ways of string formatting — are the older ones (going to be) deprecated?
...0}".format(world, greeting='Hello')
and is extensible through the object.__format__() hook used to handle formatting of individual values.
Note that the old system had % and the Template class, where the latter allows you to create subclasses that add or alter its behaviour. The new-style system ...
Error: No default engine was specified and no extension was provided
...ne);
this.engine = engines[ext] || (engines[ext] = require(ext.slice(1)).__express);
this.path = this.lookup(name);
}
You must have installed a default engine
Express search default layout view by program.template as you can read below:
mkdir(path + '/views', function(){
switch (progr...
NoSQL (MongoDB) vs Lucene (or Solr) as your database
With the NoSQL movement growing based on document-based databases, I've looked at MongoDB lately. I have noticed a striking similarity with how to treat items as "Documents", just like Lucene does (and users of Solr).
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Override configured user for a single git commit
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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What is a regular expression which will match a valid domain name without a subdomain?
...many valid edge cases that I have missed):
^((?!-))(xn--)?[a-z0-9][a-z0-9-_]{0,61}[a-z0-9]{0,1}\.(xn--)?([a-z0-9\-]{1,61}|[a-z0-9-]{1,30}\.[a-z]{2,})$
When choosing a domain validation regex, you should see if the domain matches the following:
xn--stackoverflow.com
stackoverflow.xn--com
stackov...
Find a private field with Reflection?
...can do it just like with a property:
FieldInfo fi = typeof(Foo).GetField("_bar", BindingFlags.NonPublic | BindingFlags.Instance);
if (fi.GetCustomAttributes(typeof(SomeAttribute)) != null)
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Zooming MKMapView to fit annotation pins?
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- (void)showAnnotations:(NSArray *)annotations animated:(BOOL)animated NS_AVAILABLE(10_9, 7_0);
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Get the first key name of a javascript object [duplicate]
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If you decide to use Underscore.js you better do
_.values(ahash)[0]
to get value, or
_.keys(ahash)[0]
to get key.
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