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Change a column type from Date to DateTime during ROR migration
..._date_format_in_my_table
Then in your migration file:
For Rails >= 3.2:
class ChangeDateFormatInMyTable < ActiveRecord::Migration
def up
change_column :my_table, :my_column, :datetime
end
def down
change_column :my_table, :my_column, :date
end
end
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SQL Group By with an Order By
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200
In all versions of MySQL, simply alias the aggregate in the SELECT list, and order by the alia...
MVC3 Razor: Displaying html within code blocks
...
230
You could use @: to escape:
@if(Model.foo)
{
@:Hello World
}
or the special <text>...
Why does Math.floor return a double?
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edited Apr 27 '19 at 14:38
Gama11
21.5k77 gold badges5151 silver badges7373 bronze badges
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postgresql: INSERT INTO … (SELECT * …)
...LE tblB (id serial, time integer);
INSERT INTO tblB (time) VALUES (5000), (2000);
psql postgres
CREATE TABLE tblA (id serial, time integer);
INSERT INTO tblA
SELECT id, time
FROM dblink('dbname=dbtest', 'SELECT id, time FROM tblB')
AS t(id integer, time integer)
WHERE time > 10...
Using :after to clear floating elements
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261
Write like this:
.wrapper:after {
content: '';
display: block;
clear: both;
}
C...
When does Java's Thread.sleep throw InterruptedException?
...entire paper here:
http://www.ibm.com/developerworks/java/library/j-jtp05236/index.html?ca=drs-
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How to “inverse match” with regex?
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72
(?!Andrea).{6}
Assuming your regexp engine supports negative lookaheads..
Edit: ..or maybe yo...
Is there “Break on Exception” in IntelliJ?
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edited Nov 23 '15 at 8:49
Fabian Tamp
3,84711 gold badge2121 silver badges4040 bronze badges
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Why can't yield return appear inside a try block with a catch?
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edited Dec 6 '08 at 21:27
answered Dec 6 '08 at 21:07
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