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Please explain the exec() function and its family
...the child (if the fork() fails, no child is created and the parent gets an error code).
That way, the parent knows the PID of the child and can communicate with it, kill it, wait for it and so on (the child can always find its parent process with a call to getppid()).
The exec() call replaces the en...
When restoring a backup, how do I disconnect all active connections?
...,
MOVE 'YourLDFLogicalName' TO 'D:\Data\YourLDFFile.ldf'
/*If there is no error in statement before database will be in multiuser
mode. If error occurs please execute following command it will convert
database in multi user.*/
ALTER DATABASE YourDB SET MULTI_USER
GO
Reference : Pinal Dave (http:...
Comparing two dictionaries and checking how many (key, value) pairs are equal
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Same error if there is list element for the dict key. I think cmp is better way to do it unless I am missing anything.
– Mutant
Sep 22 '15 at 20:22
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How to remove a key from a Python dictionary?
...ter is not specified (ie. my_dict.pop('key')) and key does not exist, a KeyError is raised.
To delete a key that is guaranteed to exist, you can also use
del my_dict['key']
This will raise a KeyError if the key is not in the dictionary.
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Selecting data from two different servers in SQL Server
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Confirmed this fails in my env, error says I needed to use addlinkedserver
– gorlaz
Mar 14 '17 at 3:32
1
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Why can't Python parse this JSON data?
... any level in a dictionary by specifying the 'key paths'. If you get a KeyError exception it means the key doesn't exist in the path. Look out for typos or check the structure of your dictionary.
– Nuhman
May 25 '18 at 4:55
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This Handler class should be static or leaks might occur: IncomingHandler
... Note: after making the IncomingHandler static, I was getting the error "The constructor MyActivity.IncomingHandler() is undefined." on the line "final Messenger inMessenger = new Messenger(new IncomingHandler());". The solution is to change that line to "final Messenger inMessenger = new M...
Associating enums with strings in C#
...get { return new LogCategory("Warning"); } }
public static LogCategory Error { get { return new LogCategory("Error"); } }
}
Pass in type-safe string values as a parameter:
public static void Write(string message, LogCategory logCategory)
{
var log = new LogEntry { Message = message };
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How can I get Git to follow symlinks?
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yes @KentFrederic but wiriting the exact error message returned help stack user's search for the solution to its problem.tried to cancel downvote but locked sorry. On the one hand your answer is right given the warning, on the other hand one should give priority to ...
Perform commands over ssh with Python
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For unknown host error, do: ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) before
– Nemo
Jan 22 '19 at 8:16
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