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Ruby on Rails: getting the max value from a DB column

... for example, if you want both min and max: Bar.select("MAX(bar) max_bar, MIN(bar) min_bat").first.attributes – Shalev Shalit May 19 '15 at 9:52 ...
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How to convert BigDecimal to Double in Java?

... Hi, i used same, But the problem is both anser are different my decimal output was 13555261857.79 and when converted to double its 1.355526185779E10 .. How do i get same output after converting decimal to double – user13926345 Aug 2 at 5:...
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Is “ ” a replacement of “ ”?

... . So I just wanted to check: is this the new replacement for white space? If yes, any idea why they changed? 3 Answers ...
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Inconsistent accessibility: property type is less accessible

... make your class public access modifier, just add public keyword infront of your class name namespace Test { public class Delivery { private string name; private string address; private DateTime arrivalTime; public str...
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How do you find the disk size of a Postgres / PostgreSQL table and its indexes

... ) AS all_tables ORDER BY total_size DESC ) AS pretty_sizes; I've modified it slightly to use pg_table_size() to include metadata and make the sizes add up. share | improve this answer ...
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Create a new workspace in Eclipse

...to the answer from @rajah9, you may also want to copy settings, especially if you have good Working Sets defined. – david.joyce13 Mar 4 '14 at 19:21 add a comment ...
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How to add lines to end of file on Linux

...en you do the $ echo "foobar" >> file,the newline is already there. If you do $ echo -n "foobar" >> file, you won't append the newline to the end of the line, so you'll write in the same line. – user897079 Mar 24 '15 at 21:29 ...
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Python - use list as function parameters

... StackExchange.ifUsing("editor", function () { StackExchange.using("externalEditor", function () { StackExchange.using("snippets", function () { StackExchange.snippets.init(); ...
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pdftk compression option

... I had the same problem and found two different solutions (see this thread for more details). Both reduced the size of my uncompressed PDF dramatically. Pixelated (lossy): convert input.pdf -compress Zip output.pdf Unpixelated (lossless, but may display sligh...
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how to configure apache server to talk to HTTPS backend server?

I configured apache server as a reverse proxy and it works fine if I point a backend server as HTTP. That is: 2 Answers ...