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PostgreSQL DISTINCT ON with different ORDER BY
...approaches:
The general solution that should work in most DBMSs:
SELECT t1.* FROM purchases t1
JOIN (
SELECT address_id, max(purchased_at) max_purchased_at
FROM purchases
WHERE product_id = 1
GROUP BY address_id
) t2
ON t1.address_id = t2.address_id AND t1.purchased_at = t2.max_pur...
How do I remove javascript validation from my eclipse project?
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721
I actually like MY JavaScript files to be validated, but I definitely don't want to validate and...
How to check if a file is empty in Bash?
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10 Answers
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Escape single quote character for use in an SQLite query
...abases expect it that way), so it would be :
INSERT INTO table_name (field1, field2) VALUES (123, 'Hello there''s');
Relevant quote from the documentation:
A string constant is formed by enclosing the string in single quotes ('). A single quote within the string can be encoded by putting two ...
git -> show list of files changed in recent commits in a specific directory
...es -- for details see the online manual at http://svnbook.red-bean.com/en/1.7/svn.ref.svn.c.log.html
4 Answers
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how to view the contents of a .pem certificate
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143
Use the -printcert command like this:
keytool -printcert -file certificate.pem
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Make a number a percentage
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A percentage is just:
(number_one / number_two) * 100
No need for anything fancy:
var number1 = 4.954848;
var number2 = 5.9797;
alert(Math.floor((number1 / number2) * 100)); //w00t!
share
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Java resource as file
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answered Mar 24 '09 at 7:18
Jon SkeetJon Skeet
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Git On Custom SSH Port
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edited Nov 12 '14 at 10:07
Trufa
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How do I break a string across more than one line of code in JavaScript?
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