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Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine

...is the answer I found when I did an extensive search for this known issue) and that causes other part of my code to break. Fortunately, now Microsoft has released a 64 bit compatible 2010 Office System Driver which can be used as replacement for the traditional Microsoft.Jet.OLEDB.4.0 driver. It wo...
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How to set or change the default Java (JDK) version on OS X?

... @MattO'Brien it’s something which depends on the shell you’re using, and the configuration you have in place, so I can’t give a complete solution for that… – markhellewell Nov 14 '14 at 2:25 ...
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Oracle Differences between NVL and Coalesce

...you can find a difference in the fact that NVL makes an implicit data type casting if the given values are of different types. So for instance, I was getting an error using COALESCE passing it two NULL values (one explicitly set and the other taken from a column in the database, of type NUMBER), tha...
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How do I abort the execution of a Python script? [duplicate]

...exit with zero. import sys sys.exit("aa! errors!") Prints "aa! errors!" and exits with a status code of 1. There is also an _exit() function in the os module. The sys.exit() function raises a SystemExit exception to exit the program, so try statements and cleanup code can execute. The os._exit...
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Bash command to sum a column of numbers [duplicate]

I want a bash command that I can pipe into that will sum a column of numbers. I just want a quick one liner that will do something essentially like this: ...
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What is the correct way to start a mongod service on linux / OS X?

I've installed mongodb and have been able to run it, work with it, do simple DB read / write type stuff. Now I'm trying to set up my Mac to run mongod as a service. ...
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Java - Method name collision in interface implementation

...Something2 ) are expected ? I cannot even expect client code to be able to cast my instance to the appropriate interface , so am I not loosing something by this restriction ? Also note that in this way , when writing classes that actually implement the respective interfaces , we loose the benefit of...
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How can I pass a member function where a free function is expected?

...n using a void* interface as they remove the potential for errors due to a cast to the wrong type. To clarify how to use a function pointer to call a member function, here is an example: // the function using the function pointers: void somefunction(void (*fptr)(void*, int, int), void* context) { ...
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What is the difference between string primitives and String objects in JavaScript?

...(s).prototype.toString.call = [object String]. The auto-boxing behaviour casts s back and forth to its wrapper type as needed, but the standard operations are incredibly fast since you are dealing with a simpler data type. However auto-boxing and Object.prototype.valueOf have different effects. I...
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Quick and easy file dialog in Python?

I have a simple script which parses a file and loads it's contents to a database. I don't need a UI, but right now I'm prompting the user for the file to parse using raw_input which is most unfriendly, especially because the user can't copy/paste the path. I would like a quick and easy way to pre...