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Database Design for Revisions?
...or attribute. This just causes problems down the line, requires surrogate keys and all sorts of other problems.
Design 2 does have problems with schema changes. If you change the Employees table you have to change the EmployeeHistories table and all the related sprocs that go with it. Potentially...
How to use SVN, Branch? Tag? Trunk?
...
The subversion book is an excellent source of information on strategies for laying out your repository, branching and tagging.
See also:
Do you continue development in a branch or in the trunk
Branching strategies
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How to percent-encode URL parameters in Python?
... bug report about it here. Apparently it was fixed in python 3. You can workaround it by encoding as utf8 like this:
>>> query = urllib.quote(u"Müller".encode('utf8'))
>>> print urllib.unquote(query).decode('utf8')
Müller
By the way have a look at urlencode
Python 3
The same...
Difference in months between two dates
... number of 'average months' between the two dates, the following should work for all but very huge date differences.
date1.Subtract(date2).Days / (365.25 / 12)
Note, if you were to use the latter solution then your unit tests should state the widest date range which your application is designed t...
Unable to cast object of type 'System.DBNull' to type 'System.String`
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Soner Gönül
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answered May 15 '09 at 20:25
UserUser
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How do I erase an element from std::vector by index?
... a single element, you could do:
std::vector<int> vec;
vec.push_back(6);
vec.push_back(-17);
vec.push_back(12);
// Deletes the second element (vec[1])
vec.erase(vec.begin() + 1);
Or, to delete more than one element at once:
// Deletes the second through third elements (vec[1], vec[2])
ve...
Can I load a .NET assembly at runtime and instantiate a type knowing only the name?
...teInstance to create an instance of your preferred type. You'll need to look the type up first using reflection. Here is a simple example:
Assembly assembly = Assembly.LoadFrom("MyNice.dll");
Type type = assembly.GetType("MyType");
object instanceOfMyType = Activator.CreateInstance(type);
Updat...
How do I force my .NET application to run as administrator?
...'ll want to modify the manifest that gets embedded in the program. This works on Visual Studio 2008 and higher: Project + Add New Item, select "Application Manifest File". Change the <requestedExecutionLevel> element to:
<requestedExecutionLevel level="requireAdministrator" uiAccess="fa...
Trying to add adb to PATH variable OSX
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Why are you trying to run "./adb"? That skips the path variable entirely and only looks for "adb" in the current directory. Try running "adb" instead.
Edit: your path looks wrong. You say you get
/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/Libs/andr...
How to draw vertical lines on a given plot in matplotlib?
Given a plot of signal in time representation, how to draw lines marking corresponding time index?
6 Answers
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