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How can I create a unique constraint on my column (SQL Server 2008 R2)?
I have SQL Server 2008 R2 and I want to set a unique column.
4 Answers
4
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what exactly is device pixel ratio?
...solution is double the logical linear resolution.
Physical resolution: 960 x 640
Logical resolution: 480 x 320
The formula is:
Where:
is the physical linear resolution
and:
is the logical linear resolution
Other devices report different device pixel ratios, including non-integer ones. ...
What is ApplicationException for in .NET?
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103
According to the remarks in msdn:
User applications, not the common language runtime, throw cu...
Access lapply index names inside FUN
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edited Mar 30 '12 at 21:50
answered Mar 30 '12 at 20:47
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How to use JavaScript source maps (.map files)?
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edited Jul 1 at 2:05
Leniel Maccaferri
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Defining an abstract class without any abstract methods
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edited May 19 '17 at 17:03
answered Jan 27 '11 at 0:15
bi...
Difference between Python datetime vs time modules
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104
the time module is principally for working with unix time stamps; expressed as a floating point...
Disable vertical scroll bar on div overflow: auto
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answered Oct 4 '11 at 10:34
LukeLuke
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Cleanest way to write retry logic?
...ar exceptions = new List<Exception>();
for (int attempted = 0; attempted < maxAttemptCount; attempted++)
{
try
{
if (attempted > 0)
{
Thread.Sleep(retryInterval);
}
...
ASP.NET MVC: Is Controller created for every request?
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104
A Controller is created for every request by the ControllerFactory (which by default is the Def...