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Where does PostgreSQL store the database?
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Where is array's length property defined?
We can determine the length of an ArrayList<E> using its public method size() , like
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What is the Java ?: operator called and what does it do?
I have been working with Java a couple of years, but up until recently I haven't run across this construct:
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How to export table as CSV with headings on Postgresql?
I'm trying to export a PostgreSQL table with headings to a CSV file via command line, however I get it to export to CSV file, but without headings.
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Python glob multiple filetypes
...tter way to use glob.glob in python to get a list of multiple file types such as .txt, .mdown, and .markdown? Right now I have something like this:
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What does set -e mean in a bash script?
I'm studying the content of this preinst file that the script executes before that package is unpacked from its Debian archive (.deb) file.
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Benefit of using Parcelable instead of serializing object
As I understand, Bundle and Parcelable belongs to the way Android performs serialization in. It is used for example in passing data between activities. But I wonder, if there are any benefits in using Parcelable instead of classic serialization in case of saving state of my business objects to...
How to convert a table to a data frame
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What does “:=” do?
I've seen := used in several code samples, but never with an accompanying explanation. It's not exactly possible to google its use without knowing the proper name for it.
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Why is “if not someobj:” better than “if someobj == None:” in Python?
I've seen several examples of code like this:
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