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SQL Server - When to use Clustered vs non-Clustered Index?
...treme care when picking a clustering key - it should be:
narrow (4 bytes ideal)
unique (it's the "row pointer" after all. If you don't make it unique SQL Server will do it for you in the background, costing you a couple of bytes for each entry times the number of rows and the number of nonclustere...
How do I create a SHA1 hash in ruby?
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For a Base64 encoded hash, to validated an Oauth signature, I used
require 'base64'
require 'hmac-sha1'
Base64.encode64((HMAC::SHA1.new('key') << 'base').digest).strip
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Remove file from SVN repository without deleting local copy
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I am getting a "svn: invalid option: --keep-local" - Is it because I am on 1.4.6?
– barfoon
May 11 '09 at 17:39
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Convert varchar to uniqueidentifier in SQL Server
...he schema for, contains a column defined as varchar(50) which stores uniqueidentifiers in the format 'a89b1acd95016ae6b9c8aabb07da2010' (no hyphens)
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How do you run a single query through mysql from the command line?
... it at all i.e. mysql.exe -u root -e "my query"
– solidau
Jun 25 '19 at 16:29
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Showing a different background colour in Vim past 80 characters
... add this to your .vimrc to highlight 81 and onward (so 80 is your last valid column):
let &colorcolumn=join(range(81,999),",")
If you don't see a highlight, you may not have a ColorColumn highlight color set. Add this (adjust to suit your preferences):
highlight ColorColumn ctermbg=235 guib...
Which regular expression operator means 'Don't' match this character?
...tead of specifying all the characters literally, you can use shorthands inside character classes: [\w] (lowercase) will match any "word character" (letter, numbers and underscore), [\W] (uppercase) will match anything but word characters; similarly, [\d] will match the 0-9 digits while [\D] matches...
Why does “,,,” == Array(4) in Javascript?
... constructor... anyway, in a system (dont bother what kind of system), <identity_X>===<identity_X> sould always be true!
– ZEE
Jun 15 '12 at 17:04
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Add hover text without javascript like we hover on a user's reputation
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@David d C e Freitas: thank you for brightening StackOverflow with your edit to this answer ... don't know how to actually tag you but oh well
– Meredith
Jan 7 '19 at 9:44
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How to check if an intent can be handled from some activity?
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well, with android api 30+, it doesn't always work now)
– user924
Jun 24 at 14:30
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