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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...from a nvarchar(X) column to a varchar(X) column to fail with a truncation error (where X denotes a number that is the same in both instances).
SQL Server 2012 adds SC (Supplementary Character) collations that support UTF-16. In these collations a single nvarchar character may take 2 or 4 bytes.
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Accessing the logged-in user in a template
...n default('') should be nice when user is NOT login by just avoid annoying error message.
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Is recursion a feature in and of itself?
... Overflows
The more obvious one is that you risk getting a stack overflow error. Realistically, the method you wrote is very unlikely to actually lead to one, since a user would have to give incorrect input many many times to actually trigger a stack overflow.
However, one thing to keep in mind i...
Use of “global” keyword in Python
... call last):
File "file.py", line 9, in <module>
print(me)
NameError: name 'me' is not defined
While if you use the global statement, the variable will become available "outside" the scope of the function, effectively becoming a global variable.
def bob():
global me
me = "loca...
What's the difference setting Embed Interop Types true and false in Visual Studio?
...e of an item using the debugger.
When it was set to true, I was getting an error - item.FullName.GetValue The embedded interop type 'FullName' does not contain a definition for 'QBFC11Lib.IItemInventoryRet' since it was not used in the compiled assembly. Consider casting to object or changing...
How can you determine a point is between two other points on a line segment?
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That doesn't take rounding errors (inexactness of coordinates) into account.
– bart
Nov 30 '08 at 9:23
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How can I force clients to refresh JavaScript files?
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I tried the ? solution and in IE8 and I get a javascript error. Mod rewrite is an option but in most cases we wont have that much control over the server. I would prefer appending the version in the js file itself or having a folder for each version
– Karthik ...
Convert from List into IEnumerable format
...t;> to an IEnumerable<IEnumerable<obj>> it gives a compiler error since the second does not inherit from the first one.
– Emaborsa
Jul 24 '17 at 11:08
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Repeat a task with a time delay?
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I get this: error: call to this must be first statement in constructor maybe there is an easy fix.
– msysmilu
Apr 23 '15 at 14:33
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What is the difference between HashSet and List?
...t; i++)
Console.WriteLine(hashSet1[i]);
hashSet1[i] would produce an error:
Cannot apply indexing with [] to an expression of type
'System.Collections.Generic.HashSet'
You can use foreach statement:
foreach (var item in hashSet1)
Console.WriteLine(item);
You can not add duplic...