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Select last N rows from MySQL
...per row put it as second column on which the data should be order.
That's what worked for me!!!! hope it will help!!!!
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Is there a regular expression to detect a valid regular expression?
...recursion, which makes it into a Context Free language, although it is somewhat verbose for this task.
I see where you're matching []()/\. and other special regex characters. Where are you allowing non-special characters? It seems like this will match ^(?:[\.]+)$, but not ^abcdefg$. That's a val...
How to access object attribute given string corresponding to name of that attribute
...(self)[varname], but getattrmight be preferable according to the answer to What is the difference between vars and setattr?.
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Creating PHP class instance with a string
...on. The method described above can be used to create a new class instance. What if I want to statically call a method of an existing class ? I tried as follows: $model = $user_model::find()->All(); where $user_model is the variable containing the string of the class being called
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How to add column if not exists on PostgreSQL?
...thods if these are random strings coming from external sources. No matter what method you use (client-side or server-side dynamic strings executed as queries), it would be a recipe for disaster as it opens you to SQL injection attacks.
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Pair/tuple data type in Go
...s := p1.a.(string) + " now"
fmt.Println("p1.a", s)
}
However I think what you have already is perfectly idiomatic and the struct describes your data perfectly which is a big advantage over using plain tuples.
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Disable assertions in Python
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Thanks for the answer, but not yet completely what i was thinking about. I would like to disable asserts inside a function during runtime, ideally with some sort of context manager: assertion is evaluated: foo() and switching assertions off: with skip_assertion(): foo(...
Extract TortoiseSVN saved password
...in...without posting an explicit question to the TortiseSVN folks, here is what I found...tortoisesvn.net/docs/release/TortoiseSVN_en/… In addition if it was decrypted client side, then pushed over in plain text to the server it would defeat the purpose. I guess you could send it over via SSH.
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Naming convention for unique constraint
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AK: Alternate Key is what SQL Server Data tools 2012's design surface calls them too.
– Alex KeySmith
Aug 22 '13 at 12:24
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How can I create a Set of Sets in Python?
... of sets. The problem is that the sets must contain immutable objects. So, what you can do is simply make it as a set of tuples. That worked fine for me!
A = set()
A.add( (2,3,4) )##adds the element
A.add( (2,3,4) )##does not add the same element
A.add( (2,3,5) )##adds the element, because it is di...