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ALTER DATABASE failed because a lock could not be placed on database
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After you get the error, run
EXEC sp_who2
Look for the database in the list. It's possible that a connection was not terminated. If you find any connections to the database, run
KILL <SPID>
where <SPID> is the SPID for the sessions that are connected to th...
About .bash_profile, .bashrc, and where should alias be written in? [duplicate]
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Check out http://mywiki.wooledge.org/DotFiles for an excellent resource on the topic aside from man bash.
Summary:
You only log in once, and that's when ~/.bash_profile or ~/.profile is read and executed. Since everything you run from your login shell inherits the lo...
Meaning of epsilon argument of assertEquals for double values
...ld be 0 (100% accuracy, no exceptions). If you want a margin of error (say for degrees) you could set epsilon to 1 meaning that, for example, 64.2° is the same as 64.8° (since abs(64.8-64.2) < 1)
– Pieter De Bie
Sep 25 '15 at 8:14
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Pretty-Print JSON in Java
...ow to shrink this statement to fewer lines if this is what you are looking for. public String prettifyJson(String json) { JsonElement jsonElement = new JsonParser().parse(json); return new GsonBuilder().setPrettyPrinting().create().toJson(jsonElement); }
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`static` keyword inside function?
I was looking at the source for Drupal 7, and I found some things I hadn't seen before. I did some initial looking in the php manual, but it didn't explain these examples.
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CSS Box Shadow - Top and Bottom Only [duplicate]
...in each direction.
Have a look at http://www.css3.info/preview/box-shadow/ for more information about box-shadow.
Hope this was what you were looking for!
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In Rails, how do you render JSON using a view?
...uppose you're in your users controller and you want to get a json response for a show request, it'd be nice if you could create a file in your views/users/ dir, named show.json and after your users#show action is completed, it renders the file.
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Maven artifact and groupId naming
I'm currently in the process of moving some project from Ant to Maven. Conformist as I am, I want to use well-established conventions for finding groupId and artifactId , but I can't find any detailed conventions (there are some, but they don't cover the points I'm wondering about).
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Get battery level and state in Android
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Here is a code sample that explains how to get battery information.
To sum it up, a broadcast receiver for the ACTION_BATTERY_CHANGED intent is set up dynamically, because it can not be received through components declared in manifests, only by explicitly registering for it with C...
Google Maps v2 - set both my location and zoom in
...I pulled the above code.
Sorry, this answer is flawed. See Rob's answer for a way to truly do this in one shot, by creating a CameraPosition and then creating a CameraUpdate from that CameraPosition.
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