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Difference between clustered and nonclustered index [duplicate]
I need to add proper index to my tables and need some help.
6 Answers
6
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Safe characters for friendly url [closed]
...he question, you should only allow these characters:
Lower case letters (convert upper case to lower)
Numbers, 0 through 9
A dash - or underscore _
Tilde ~
Everything else has a potentially special meaning. For example, you may think you can use +, but it can be replaced with a space. & is ...
How to check if a string contains a substring in Bash
...independent (Bash only!)
For testing strings without care of case, simply convert each string to lower case:
stringContain() {
local _lc=${2,,}
[ -z "$1" ] || { [ -z "${_lc##*${1,,}*}" ] && [ -n "$2" ] ;} ;}
Check:
stringContain 'o "M3' 'echo "my string"' && echo yes || ...
How to tell when UITableView has completed ReloadData?
...nvestigation, I find that the table view sends tableView:numberOfSections: and tableView:numberOfRowsInSection: to its data source before returning from reloadData. If the delegate implements tableView:heightForRowAtIndexPath:, the table view also sends that (for each row) before returning from rel...
Sync data between Android App and webserver [closed]
I want to sync data (such as db record, media) between an Android App and a Server. If you've seen Evernote or similar Applications, you certainly understand what I mean.
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Difference between >>> and >>
What is the difference between >>> and >> operators in Java?
7 Answers
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Simplest code for array intersection in javascript
...readability argued to keep it (I was on that side actually, but I've since converted to Lodash). @see github.com/jashkenas/underscore/issues/2182
– machineghost
Jan 7 '18 at 18:59
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Is there any difference between a GUID and a UUID?
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Note that if you want to convert from Microsoft's GUID binary representation to a standard UUID you'll have to flip endianness of the first three (of four) data fields as detailed in the "Binary encoding" section here: en.wikipedia.org/wiki/Globally_...
How to make MySQL handle UTF-8 properly
...set and character-set-server).
If you have existing data that you wish to convert to UTF-8, dump your database, and import it back as UTF-8 making sure:
use SET NAMES utf8 before you query/insert into the database
use DEFAULT CHARSET=utf8 when creating new tables
at this point your MySQL client a...
What is the use of the pipe symbol in YAML?
...dicates that multi-line "folded" scalar follows, meaning that newlines are converted to spaces. For example:
>>> import yaml
>>> yaml.load("""
... |
... This is a multi-line
... literal style scalar.
... """)
'This is a multi-line\nliteral style scalar.\n'
>>> yaml.loa...