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How do I get the full path to a Perl script that is executing?
...l 5.0.0, which was released in the late '90s—I think it's save to use by now.
– Drew Stephens
Apr 5 '16 at 12:18
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What are '$$' used for in PL/pgSQL
...ACE FUNCTION update_ts() RETURNS TRIGGER AS $BODY$ BEGIN NEW.updated_at = NOW(); RETURN NEW; END; $BODY$ LANGUAGE plpgsql - I don't see body defined anywhere. I really have no idea what is going on here
– Growler
Feb 2 '17 at 3:55
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Select Last Row in the Table
I would like to retrieve the last file inserted into my table. I know that the method first() exists and provides you with the first file in the table but I don't know how to get the last insert.
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Installing Python packages from local file system folder to virtualenv with pip
...default answer. No need to make pip hunt around with --find-links if you know exactly where your package is on the local machine.
– Robert
Feb 10 at 19:33
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How do I create an empty array/matrix in NumPy?
...ay in NumPy (e.g. a 2D array m*n to store your matrix), in case you don't know m how many rows you will append and don't care about the computational cost Stephen Simmons mentioned (namely re-buildinging the array at each append), you can squeeze to 0 the dimension to which you want to append to: X ...
MAC addresses in JavaScript
I know that we can get the MAC address of a user via IE (ActiveX objects).
6 Answers
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The specified named connection is either not found in the configuration, not intended to be used wit
...present maintainability issues when additional models are added, I do not know, but at least my unit tests are running correctly again now.
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Converting Epoch time into the datetime
... particularly %f for the microseconds porttion of the time. For reasons unknown, time.strftime() does not support that, although the microseconds can be represented in the float value that is input to time.localtime().
– Andreas Maier
Aug 13 '19 at 4:39
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Finding the author of a line of code in Mercurial
How do I find out who is responsible for a specific line of code? I know the linenumber and the filename but I would like Mercurial to tell me the author(s) of that specific line of code. Is there a command for that?
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Format of the initialization string does not conform to specification starting at index 0
...n I add Configuration.GetConnectionString, then it solves the issue
like now the connection is:
services.AddDbContext<dbsContext>(options => options.UseSqlServer(Configuration.GetConnectionString("Default")));
works fine (This problem is solved for .net core)
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