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Remove leading or trailing spaces in an entire column of data
...-+---------------------+
So to do the whole column...
1) Insert a column
2) Insert TRIM function pointed at cell you are trying to correct.
3) Copy formula down the page
4) Copy inserted column
5) Paste as "Values"
Should be good to go from there...
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How to list active / open connections in Oracle?
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Yogesh lele
34233 silver badges1616 bronze badges
answered Jun 25 '09 at 10:21
PaulJWilliamsPaulJWilliams
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How do I obtain the frequencies of each value in an FFT?
... where Fs is the sample rate and N is the size of the FFT. The next bin is 2 * Fs / N. To express this in general terms, the nth bin is n * Fs / N.
So if your sample rate, Fs is say 44.1 kHz and your FFT size, N is 1024, then the FFT output bins are at:
0: 0 * 44100 / 1024 = 0.0 Hz
1: ...
What is a “surrogate pair” in Java?
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answered May 5 '11 at 19:28
Jeffrey L WhitledgeJeffrey L Whitledge
51.2k99 gold badges6363 silver badges9595 bronze badges
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How to create materialized views in SQL Server?
...ckground:
Creating an Indexed View
Improving Performance with SQL Server 2008 Indexed Views
Basically, all you need to do is:
create a regular view
create a clustered index on that view
and you're done!
The tricky part is: the view has to satisfy quite a number of constraints and limitati...
Linux command to print directory structure in the form of a tree
...gt; /proc/15589/task/15589/fd
|-- fdinfo
`-- root -> /
27 directories
sample taken from maintainer's web page.
You can add the option -L # where # is replaced by a number, to specify the max recursion depth.
Remove -d to display also files.
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test a file upload using rspec - rails
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292
You can use fixture_file_upload method to test file uploading:
Put your test file in "{Rails.r...
How do I escape reserved words used as column names? MySQL/Create Table
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answered May 22 '10 at 21:47
Martin SmithMartin Smith
389k7575 gold badges657657 silver badges761761 bronze badges
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Why does int num = Integer.getInteger(“123”) throw NullPointerException?
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212
The Big Picture
There are two issues at play here:
Integer getInteger(String) doesn't do wh...
Difference between break and continue in PHP?
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524
break ends a loop completely, continue just shortcuts the current iteration and moves on to the...