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Exit single-user mode
...and find all the connections to database 'my_db'.
Kill all the connections by doing KILL { session id } where session id is the SPID listed by sp_who2.
Third, open a new query window.
Execute the following code.
-- Start in master
USE MASTER;
-- Add users
ALTER DATABASE [my_db] SET MULTI_USER
GO...
How can I reliably get an object's address when operator& is overloaded?
...hat a conversion sequence may contain at most one user-defined conversion. By wrapping the type in addr_impl_ref and forcing the use of a conversion sequence already, we "disable" any conversion operator that the type comes with.
Thus the f(T&,long) overload is selected (and the Integral Promot...
Deserialize JSON to ArrayList using Jackson
...
You can deserialize directly to a list by using the TypeReference wrapper. An example method:
public static <T> T fromJSON(final TypeReference<T> type,
final String jsonPacket) {
T data = null;
try {
data = new ObjectMapper().readVa...
'innerText' works in IE, but not in Firefox
...ior differs "slightly" from that of MSHTML's proprietary innerText (copied by Opera as well, some time ago, among dozens of other MSHTML features).
First of all, textContent whitespace representation is different from innerText one. Second, and more importantly, textContent includes all of SCRIPT t...
Include CSS,javascript file in Yii Framework
...
You can do so by adding
Yii::app()->clientScript->registerScriptFile(Yii::app()->baseUrl.'/path/to/your/script');
share
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impr...
Get column index from column name in python pandas
... 2
although to be honest I don't often need this myself. Usually access by name does what I want it to (df["pear"], df[["apple", "orange"]], or maybe df.columns.isin(["orange", "pear"])), although I can definitely see cases where you'd want the index number.
...
The entity type is not part of the model for the current context
...ase, it was the following: The connection string (in Web.config) generated by the .edmx was invalid. After almost a day of trying everything, I changed the connection string from the EF string to an ADO.NET string. This solved my issue.
For example, the EF string looks something like this:
<con...
Step out of current function with GDB
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How to make inline functions in C#
...
Func<int, int, int> add = (x, y) => x + y; // types are inferred by the compiler
Statement lambdas:
Action<int> print = (int x) => { Console.WriteLine(x); };
Action<int> print = x => { Console.WriteLine(x); }; // inferred types
Func<int, int, int> add = (x, y) =&g...
Importing files from different folder
...s into packages (see other answers) instead of modifying the search path.
By default, you can't. When importing a file, Python only searches the directory that the entry-point script is running from and sys.path which includes locations such as the package installation directory (it's actually a li...