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When restoring a backup, how do I disconnect all active connections?
...click Detach Database, it brings up a dialog with the active connections.
By clicking on the hyperlink under "Messages" you can kill the active connections.
You can then kill those connections without detaching the database.
More information here.
SQL Server Management Studio 2008
The interface has...
Is there a better way to dynamically build an SQL WHERE clause than by using 1=1 at its beginning?
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One solution is to simply not write queries manually by appending strings. You could use an ORM, like Entity Framework, and with LINQ to Entities use the features the language and framework offer you:
using (var dbContext = new MyDbContext())
{
IQueryable<Table1Item>...
What is the best way to use a HashMap in C++?
... std::unordered_map) containers. In an ordered map the elements are sorted by the key, insert and access is in O(log n). Usually the standard library internally uses red black trees for ordered maps. But this is just an implementation detail. In an unordered map insert and access is in O(1). It is j...
Does git return specific return error codes?
...eturn a status of 0 for complete success. Other status codes are determine by the app. There are 255 other codes which meanings depend on the app. See their man pages for details.
– shawnhcorey
Oct 29 '18 at 13:54
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What is Serialization?
...rialization is the process of turning an object in memory into a stream of bytes so you can do stuff like store it on disk or send it over the network.
Deserialization is the reverse process: turning a stream of bytes into an object in memory.
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filter for complete cases in data.frame using dplyr (case-wise deletion)
...using this filter in a dplyr pipe with other dplyr commands (such as group_by()), you will need to add %>% data.frame() %>% before you try and filter on complete.cases(.) because it won't work on tibbles or grouped tibbles or something. Or at least, that has been the experience I have had.
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Create timestamp variable in bash script
... print another timestamp
# continue...
If you don't like the format given by the %T specifier you can combine the other time conversion specifiers accepted by date. For GNU date, you can find the complete list of these specifiers in the official documentation here: https://www.gnu.org/software/cor...
Set the maximum character length of a UITextField
...s no max length property, it's relatively simple to get this functionality by setting the text field's delegate and implementing the following delegate method:
Objective-C
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
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Maximum execution time in phpMyadmin
...aries\config.default.php OR you can find path of your phpmyadmin directory by clicking wamp tray icon > Apache > Alias Directories and edit phpmyadmin. Also as mentioned by dsnunez, it's better to edit config.inc.php --edit-- editing config.inc.php didn't work for me
– Ab...
Multiple DB Contexts in the Same DB and Application in EF 6 and Code First Migrations
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Entity Framework 6 added support for multiple DbContexts by adding the -ContextTypeName and -MigrationsDirectory flags. I just ran the commands in my Package Manager Console and pasted the output below...
If you have 2 DbContexts in your project and you run enable-migrations, you'...