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If table exists drop table then create it, if it does not exist just create it
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edited Oct 10 '15 at 16:26
Junior Mayhé
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Python: How would you save a simple settings/config file?
...er()
– user3148949
Apr 27 '17 at 6:40
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What is the difference between persist() and merge() in JPA and Hibernate?
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answered Dec 22 '10 at 12:57
axtavtaxtavt
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How does deriving work in Haskell?
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edited Jan 26 '16 at 10:40
Lii
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Android Archive Library (aar) vs standard jar
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answered May 28 '14 at 16:00
unifyunify
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When does invoking a member function on a null instance result in undefined behavior?
...rstand is why it's undefined behavior to dereference a null pointer. In C++03, there's actually a bit of ambiguity here.
Although "dereferencing a null pointer results in undefined behavior" is mentioned in notes in both §1.9/4 and §8.3.2/4, it's never explicitly stated. (Notes are non-normative....
Casperjs/PhantomJs vs Selenium
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answered Dec 31 '12 at 10:38
Ariya HidayatAriya Hidayat
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Where to define custom error types in Ruby and/or Rails?
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+50
For Gems
I have seen many times that you define exceptions in this way:
gem_dir/lib/gem_name/exceptions.rb
and defined as:
mod...
Java Persistence / JPA: @Column vs @Basic
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answered Sep 5 '09 at 14:10
djnadjna
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How to un-escape a backslash-escaped string?
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answered Dec 11 '09 at 1:04
ChristopheDChristopheD
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