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How do you open an SDF file (SQL Server Compact Edition)? [closed]
I have an SDF file and I would like to retrieve its schema and query it with some UI. How can I do this? I have no Visual Studio installed on the machine and I would like to install as little software as possible.
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Regex group capture in R with multiple capture-groups
In R, is it possible to extract group capture from a regular expression match? As far as I can tell, none of grep , grepl , regexpr , gregexpr , sub , or gsub return the group captures.
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What is the fastest way to compute sin and cos together?
I would like to compute both the sine and co-sine of a value together (for example to create a rotation matrix). Of course I could compute them separately one after another like a = cos(x); b = sin(x); , but I wonder if there is a faster way when needing both values.
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Is the 'type' attribute necessary for tags?
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Where do “pure virtual function call” crashes come from?
I sometimes notice programs that crash on my computer with the error: "pure virtual function call".
8 Answers
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Clear android application user data
Using adb shell to clear application data
7 Answers
7
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psql invalid command \N while restore sql
I'm trying to restore my dump file, but it caused an error:
12 Answers
12
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Node.js or Erlang
I really like these tools when it comes to the concurrency level it can handle.
9 Answers
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Python pip install fails: invalid command egg_info
I find that recently often when I try to install a Python package using pip , I get the error(s) below.
15 Answers
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Windows batch script launch program and exit console
I have a batch script that I use to launch a program, such as notepad.exe . When I double click on this batch file, notepad starts normally, but the black window of the cmd who launched notepad.exe remains in the background. What do I have to do in order to launch notepad.exe and make the cmd...