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How to reset postgres' primary key sequence when it falls out of sync?
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@Valery: But in order to avoid gaps mentioned by @mikl two comments above, you need SELECT setval('your_table_id_seq', coalesce((select max(id)+1 from your_table), 1), false);
– Antony Hatchkins
Nov 9 '12 at 12:19
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Why have header files and .cpp files? [closed]
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C++ compilation
A compilation in C++ is done in 2 major phases:
The first is the compilation of "source" text files into binary "object" files: The CPP file is the compiled file and is compiled without any knowledge about the other CPP files (or even libraries), u...
What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4
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@Reed there isn't one, and I actually interpreted that answer to mean that you would have to compile log4net yourself. I guess I can do that, but I'd rather just take their precompiled binary and reference it from my project. I'll look into ...
What is the most effective way to get the index of an iterator of an std::vector?
...d need the index the iterator is currently pointing at. AFAIK this can be done in two ways:
9 Answers
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What's the difference between a Python module and a Python package?
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A module is a single file (or files) that are imported under one import and used.
e.g.
import my_module
A package is a collection of modules in directories that give a package hierarchy.
from my_package.timing.danger.internets import function_of_love
Documentation for modules
I...
How can I break up this long line in Python?
... is to join string literals together implicitly by making them adjacent to one another:
("This is the first line of my text, "
"which will be joined to a second.")
Or with line ending continuations, which is a little more fragile, as this works:
"This is the first line of my text, " \
"which wil...
What does the “map” method do in Ruby?
I'm new to programming. Can someone explain what .map would do in:
7 Answers
7
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Upgrade python in a virtualenv
...tand that answer, you may try to create a new virtualenv on top of the old one. You just need to know which python is going to use your virtualenv (you will need to see your virtualenv version).
If your virtualenv is installed with the same python version of the old one and upgrading your virtuale...
Using Python's os.path, how do I go up one directory?
I recently upgrade Django from v1.3.1 to v1.4.
14 Answers
14
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What is the largest Safe UDP Packet Size on the Internet
...ving less fragments makes delivery "safer" because if there were more than one and any one of those never made it - the whole packet (datagram) is dropped by UDP.
– markmnl
Jan 5 '13 at 9:28
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