Does anybody have an explanation for why the following invocation of foo() is illegal and returns the error:
开发者_JS百科Lets assume I want to store Indian mobile phone numbers in a MySQL table, since the number of records is very large, I would want to optimize my storage.
I\'m getting a problem with Tkinter for python, I have a class, application(root): root is Tk(), and when I run the class without an __init__ function, it works okay, but crashes after I quit the prog
I am preparing a function in VBA to create a query to search a database. One of the parameters, \"Value\", can be a string (e.g.: \"ON\") or a number (e.g.: 123), if it\'s a string, I have to select v
I am working on building an application for a banking instituti开发者_如何学编程on where the accuracy for monetary transaction is very much essential. I am thinking of using the datatype Money in SQL
I\'m coming from Python and I have some problem with managing types in c++. In Python I can do something like this:
Regardless of the collection type I use as input, LINQ always returns IEnumerable<MyType> instead of List<MyType> or HashSet<MyType>.
We have a SQL Server 2005 database for which we want to improve performance of bulk delete/insert/selects and I notice it uses decimal(18,0) for its primary keys. I understand this will give us many m
I loaded up some old code from Delphi Magazine and when I compile it inside Delphi 2010 I get an E2010 Incompatible types: \'AnsiChar\' and \'Char\'.
For example, I have this: abstract class Vehicle class Car extends Vehicle And I want to write a method that returns a java Class, but constrained to only Classes of type Vehicle.
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