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Truncating all tables in a Postgres database
I regularly need to delete all the data from my PostgreSQL database before a rebuild. How would I do this directly in SQL?
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How do you embed binary data in XML?
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Maybe encode them into a known set - something like base 64 is a popular choice.
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How can I set up an editor to work with Git on Windows?
...ion 1.6.2.msysgit.0.186.gf7512 and Notepad++5.3.1
I prefer to not have to set an EDITOR variable, so I tried:
git config --global core.editor "\"c:\Program Files\Notepad++\notepad++.exe\""
# or
git config --global core.editor "\"c:\Program Files\Notepad++\notepad++.exe\" %*"
That always gives:
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Show/Hide the console window of a C# console application
... show and hide the console. Lets say you accept a console param which when set you want to hide your console (i.e. silent mode, verbose=false)
– TheLegendaryCopyCoder
Jan 19 '17 at 12:44
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Why are functions in Ocaml/F# not recursive by default?
...t the meaning of "most" and the importance of each language, so let's just settle for "very many" other languages.
– GS - Apologise to Monica
Apr 13 '11 at 19:43
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UIView frame, bounds and center
...bounds. A typical example could be to draw within a view a subview as an inset of the first. Drawing the subview requires to know the bounds of the superview. For example:
UIView* view1 = [[UIView alloc] initWithFrame:CGRectMake(50.0f, 50.0f, 400.0f, 400.0f)];
view1.backgroundColor = [UIColor r...
Alternatives to gprof [closed]
What other programs do the same thing as gprof?
7 Answers
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Floating point vs integer calculations on modern hardware
...t as scalar addss. (Use -march=native to allow using whatever instruction sets your CPU supports, not just the SSE2 baseline for x86-64).
– Peter Cordes
What is the most efficient/elegant way to parse a flat table into a tree?
...dotted-numbers in your name column).
Another solution is called Nested Sets, and it can be stored in the same table too. Read "Trees and Hierarchies in SQL for Smarties" by Joe Celko for a lot more information on these designs.
I usually prefer a design called Closure Table (aka "Adjacency Rel...
What does |= (ior) do in Python?
...an in-place+ operation between pairs of objects. In particular, between:
sets: a union operation
dicts: an update operation
counters: a union (of multisets) operation
numbers: a bitwise OR, binary operation
In most cases, it is related to the | operator. See examples below.
Sets
For example, the...