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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: ...
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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jQuery - If element has class do this
...l:
if ($("#about").hasClass("opened")) {
$("#about").animate({right: "-700px"}, 2000);
}
But you can also simplify this to:
$('#about.opened').animate(...);
If #about doesn't have the opened class, it won't animate.
If the problem is with the animation itself, we'd need to know more about y...
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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C/C++ NaN constant (literal)?
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answered May 22 '13 at 12:07
Mike SeymourMike Seymour
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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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Control the size of points in an R scatterplot?
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101
Try the cex argument:
?par
cex
A numerical value giving the
amount by which plotting text an...
SVG Positioning
...just put the transformation in the g element:
<g transform="translate(20,2.5) rotate(10)">
<rect x="0" y="0" width="60" height="10"/>
</g>
Links: Example from the SVG 1.1 spec
share
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How do I select an element in jQuery by using a variable for the ID?
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190
row = $("body").find('#' + row_id);
More importantly doing the additional body.find has no imp...
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...