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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: ...
Reasons that the passed Intent would be NULL in onStartCommand
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50
I'm surprised there's no discussion of the incoming flags. I'm going to monitor this in the logs...
Difference between .tagName and .nodeName
What is the difference between $('this')[0].nodeName and $('this')[0].tagName ?
4 Answers
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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...
What is an MvcHtmlString and when should I use it?
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answered Feb 19 '10 at 2:16
LeviLevi
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Linq to EntityFramework DateTime
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202
When using LINQ to Entity Framework, your predicates inside the Where clause get translated to ...
AJAX post error : Refused to set unsafe header “Connection”
...ladimir PalantWladimir Palant
52.6k1111 gold badges9090 silver badges120120 bronze badges
5
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Align two inline-blocks left and right on same line
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150
Edit: 3 years has passed since I answered this question and I guess a more modern solution is ne...
Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
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790
There are at least 6 (!) ways to clone an array:
loop
slice
Array.from()
concat
spread operator...
no acceptable C compiler found in $PATH when installing python
...make, etc.
– Spectral
Jul 9 '14 at 20:06
2
Is there an alternative for zypper?
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