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How to change a PG column to NULLABLE TRUE?
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answered Jan 27 '11 at 5:30
mu is too shortmu is too short
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How do I convert a string to a lower case representation?
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answered May 2 '12 at 10:03
AurAAurA
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What's the 'environment' task in Rake?
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edited Oct 3 '13 at 0:09
the Tin Man
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Postgres unique constraint vs index
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Let's check uniqueness, just in case.
test=# insert into master values (0, 0);
INSERT 0 1
test=# insert into master values (0, 1);
ERROR: duplicate key value violates unique constraint "master_con_id_key"
DETAIL: Key (con_id)=(0) already exists.
test=# insert into master values (1, 0);
ERROR: ...
Why do all browsers' user agents start with “Mozilla/”?
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In summary:
Mozilla browser gets released, with User-Agent Mozilla/1.0 (Win3.1). It is publicly renamed to Netscape, but in its User-Agent it keeps its original name .
Internet Explorer is released. It spoofs Netscape by starting its User-Agent with Mozilla/ because web servers were routinely ...
Linq to EntityFramework DateTime
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When using LINQ to Entity Framework, your predicates inside the Where clause get translated to ...
Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
Excel RTD(Excel Real-Time Data)实时刷新数据技术从Excel 2002开始，微软提供了一种叫做Excel RTD（real-time data）的技术，使用该技术可以在Excel中实时查看和更新数据。RTD采用所谓的...从Excel 2002开始，微软提供了一种叫做Excel RTD（real-time d...
How do I get the name of the active user via the command line in OS X?
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answered Jul 9 '09 at 16:40
kentkent
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How to make vi redraw screen?
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edited Feb 27 '18 at 2:06
Chris Anderson
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answered Jul 13 '0...
Matplotlib: draw grid lines behind other graph elements
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According to this - http://matplotlib.1069221.n5.nabble.com/axis-elements-and-zorder-td5346.html - you can use Axis.set_axisbelow(True)
(I am currently installing matplotlib for the first time, so have no idea if that's correct - I just found it by googling "matp...