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Unioning two tables with different number of columns

... I realized that this solution also works without having to list all the columns. So instead of Select Col1, Col2, Col3, Null as Col4, Null as Col5 from Table2, one can also do, Select *, Null as Col4, Null as Col5 from Table2. – Pratik Patel Sep 20 '...
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How does the main() method work in C?

...d nothing bad happens with their given compiler. This is the case if the calling conventions are such that: The calling function cleans up the arguments. The leftmost arguments are closer to the top of the stack, or to the base of the stack frame, so that spurious arguments do not invalidate the ...
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SQL Server Index Naming Conventions [closed]

...ems that the primary key index is named PK_ and non-clustered indexes typically start with IX_. Are there any naming conventions beyond that for unique indexes? ...
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What is a plain English explanation of “Big O” notation?

...a notation "Θ" (which is a two-side bound). In my experience, this is actually typical of discussions in non-academic settings. Apologies for any confusion caused. Big O complexity can be visualized with this graph: The simplest definition I can give for Big-O notation is this: Big-O notation is ...
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Font Awesome not working, icons showing as squares

... the new Font Awesome file. The problem is that when I try to use an icon, all that gets rendered on the page is a big square. ...
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How to use a dot “.” to access members of dictionary?

... Install dotmap via pip pip install dotmap It does everything you want it to do and subclasses dict, so it operates like a normal dictionary: from dotmap import DotMap m = DotMap() m.hello = 'world' m.hello m.hello += '!' # m...
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Nested classes' scope?

...e will use that object the next time it is executed.) If you instead want all Inner objects to have a reference to an Outer because outer_var is really an instance attribute: class Outer(object): def __init__(self): self.outer_var = 1 def get_inner(self): return self.Inner...
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How to print a dictionary line by line in Python?

... Hmm. I think my problem is even worse than that. Basically I've parsed out some data from an HTML table, and I happened to store it in a dictionary, and now I'm trying to take that dictionary data and put it into a DataFrame before I export it all to an Oracle table....it's pret...
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How do I set the version information for an existing .exe, .dll?

As part of our build process I need to set the version information for all of our compiled binaries. Some of the binaries already have version information (added at compile time) and some do not. ...
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Check if application is installed - Android

I'm trying to install apps from Google Play. I can understand that on opening the Google Play store URL, it opens the Google Play and when I press the back button, the activity resumes. ...