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Formatting Numbers by padding with leading zeros in SQL Server

...HAR SELECT REPLICATE('0',6-LEN(RTRIM(EmployeeId))) + RTRIM(EmployeeId) And the code to remove these 0s and get back the 'real' number: SELECT RIGHT(EmployeeId,(LEN(EmployeeId) - PATINDEX('%[^0]%',EmployeeId)) + 1) shar...
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Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]

I have been googling for about 90 minutes now and still don't have an answer to this. Where do I set default_url_options ? I've already set it for config.action_mailer.default_url_options to solve this same bug elsewhere, but now I'm getting this error when trying to use a URL helper inside an ...
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How to list all the files in a commit?

I am looking for a simple git command that provides a nicely formatted list of all files that were part of the commit given by a hash (SHA1), with no extraneous information. ...
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UICollectionView auto scroll to cell at IndexPath

...collection view. All of the cells don't fit on the screen. I have 30 cells and only 6 on the screen. 9 Answers ...
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How long should SQL email fields be? [duplicate]

...dress field is going to be arbitrary. However, I was wondering what the "standard" is? How long do you guys make it? (same question for Name field...) ...
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How to recursively delete an entire directory with PowerShell 2.0?

What is the simplest way to forcefully delete a directory and all its subdirectories in PowerShell? I am using PowerShell V2 in Windows 7. ...
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How to check if a variable is not null?

...n case for those wondering... This does not check for an empty string ("") and undefined. See my fiddle as reference: jsfiddle.net/b0tm7yaf – Barrosy Jan 18 '19 at 15:25 ...
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How to get a tab character?

...L, there is no character for a tab, but I am confused as to why I can copy and paste one here: . (You can't see the full width of it, but if you click to edit my question, you will see the character.) If I can copy and paste a tab character, there should be a unicode equivalent that can be coded ...
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Checking out Git tag leads to “detached HEAD state”

I'm developing a deployment script for my git project and I just started using tags. I've added a new tag called v2.0 : 2 ...
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For each row in an R dataframe

I have a dataframe, and for each row in that dataframe I have to do some complicated lookups and append some data to a file. ...