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What does 'foo' really mean?
...d for Internet specifications, protocols, procedures, and events". Source: http://www.livinginternet.com
– ZygD
Nov 29 '15 at 10:11
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The way to check a HDFS directory's size?
I know du -sh in common Linux filesystems. But how to do that with HDFS?
10 Answers
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Count number of occurences for each unique value
Let's say I have:
13 Answers
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Enable SQL Server Broker taking too long
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http://rusanu.com/2006/01/30/how-long-should-i-expect-alter-databse-set-enable_broker-to-run/
alter database [<dbname>] set enable_broker with rollback immediate;
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In Java, what does NaN mean?
...defined. Like dividing 0.0 by 0.0.
You can look here for more information: https://web.archive.org/web/20120819091816/http://www.concentric.net/~ttwang/tech/javafloat.htm
Post your program here if you need more help.
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Generate random 5 characters string
...tr(str_shuffle("abcdefghijklmnopqrstuvwxyz"), 0, $length);
more details: http://forum.arnlweb.com/viewtopic.php?f=7&t=25
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node.js database [closed]
...ing the ability to perform.
Here is a list of available database modules: http://wiki.github.com/ry/node/modules#database
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PostgreSQL query to list all table names?
Is there any query available to list all tables in my Postgres DB.
7 Answers
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Shortcut to comment out a block of code with sublime text
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You can toggle the block comment with
Ctrl+Shift+/
Source: http://www.sublimetext.com/forum/viewtopic.php?f=3&t=2967
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JOIN two SELECT statement results
...se the UNION ALL keyword for this.
Here is the MSDN doc to do it in T-SQL http://msdn.microsoft.com/en-us/library/ms180026.aspx
UNION ALL - combines the result set
UNION- Does something like a Set Union and doesnt output duplicate values
For the difference with an example: http://sql-plsql.blog...