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Update multiple rows in same query using PostgreSQL

... This is wrong... You will update all rows, even if it is not '123' nor '345'. You should use WHERE column_b IN ('123','456')... – MatheusOl Sep 14 '13 at 3:54 ...
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How to print a percentage value in python?

... Is float(1) really more pythonic than 1.? – Tobias Kienzler Jul 17 '13 at 7:58 ...
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I want to get the type of a variable at runtime

...that comparison return true, but it would require a few book chapters to really cover TypeTag, so I'll stop here. Finally, maybe you don't care about the type of the variable at all. Maybe you just want to know what is the class of a value, in which case the answer is rather simple: val x = 5 x.ge...
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Is it worth using Python's re.compile?

...uick glance at the actual Python 2.5 library code, I see that Python internally compiles AND CACHES regexes whenever you use them anyway (including calls to re.match()), so you're really only changing WHEN the regex gets compiled, and shouldn't be saving much time at all - only the time it takes to ...
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Entity Framework - Code First - Can't Store List

... This is the only really correct answer IMHO. All the others require you to change your model, and that violates the principle that domain models should be persistence ignorant. (It is fine if you are using separate persistence and domain model...
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How do I PHP-unserialize a jQuery-serialized form?

.... You do indeed need to parse the string that serialize returns. See the really popular answer below. – Isaac Lubow Mar 1 '19 at 2:17 add a comment  |  ...
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Remove all special characters with RegExp

I would like a RegExp that will remove all special characters from a string. I am trying something like this but it doesn’t work in IE7, though it works in Firefox. ...
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How can I sanitize user input with PHP?

Is there a catchall function somewhere that works well for sanitizing user input for SQL injection and XSS attacks, while still allowing certain types of HTML tags? ...
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receiver type *** for instance message is a forward declaration

... That basically means that you need to import the .h file containing the declaration of States. However, there is a lot of other stuff wrong with your code. You're -init'ing an object without +alloc'ing it. That won't work You're dec...
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SQL Add foreign key to existing column

...sed an error trying to create the relationships to the other table. Thanks all. – ExceptionLimeCat Apr 30 '12 at 20:35 ...