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Can we use join for two different database tables?
Can we use the join operation for two tables from different databases? If yes, how do I do it?
2 Answers
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Can we convert a byte array into an InputStream in Java?
Can we convert a byte array into an InputStream in Java? I have been looking on the internet but couldn't find it.
2 Answer...
Remove autolayout (constraints) in Interface Builder
...e my project compatible with Snow Leopard and I am not able to remove the autolayout in the nibs using Interface builder (XCode 4.3 on Lion).
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How to update maven repository in Eclipse?
Assuming you're already using the m2eclipse plugin , what can you do when it doesn't update the dependencies to the latest in your repo?
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Regex match one of two words
I have an input that can have only 2 values apple or banana . What regular expression can I use to ensure that either of the two words was submitted?
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How to verify a method is called two times with mockito verify()
I want to verify if a method is called at least once through mockito verify. I used verify and it complains like this:
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Eclipse: Files opened by multiple searches using same editor tab
When using the "file search" function in eclipse to find a bit of text in a ".java" file, I may get a list of several search results. Let's say I double click on the file "A.java" which then opens A.java in a new editor tab. If I then use the "file search" function again to find some other bit of ...
regex for matching something if it is not preceded by something else
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You want to use negative lookbehind like this:
\w*(?<!foo)bar
Where (?<!x) means "only if it doesn't have "x" before this point".
See Regular Expressions - Lookaround for more information.
Edit: added the \w* to cap...
How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
Is there a way to call a block with a primitive parameter after a delay, like using performSelector:withObject:afterDelay: but with an argument like int / double / float ?
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Selecting multiple columns in a pandas dataframe
...).
df1 = df[['a', 'b']]
Alternatively, if it matters to index them numerically and not by their name (say your code should automatically do this without knowing the names of the first two columns) then you can do this instead:
df1 = df.iloc[:, 0:2] # Remember that Python does not slice inclusive of...