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What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
...LL
)
Following query will give me all columns and rows from both tables
SELECT
*
FROM table1, table2
Following query will give me columns from first table with table alias called 'table2'
SELECT
*
FROM table1 table2
If you mistakenly forget comma in comma-separated join, second table...
django : using select_related and get_object_or_404 together
Is there any way of using get_object_or_404 and select_related together or any other way to achieve the result of using these two together(except from putting it in try/except)??
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List of encodings that Node.js supports
...r.gz
gyp http 200 http://nodejs.org/dist/v0.10.1/node-v0.10.1.tar.gz
xcode-select: Error: No Xcode is selected. Use xcode-select -switch <path-to-xcode>, or see the xcode-select manpage (man xcode-select) for further information.
fs.readFileSync() returns a Buffer if no encoding is specified...
Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?
... array with [0] equal to true/false indicating whether or not this date is selectable and 1 equal to a CSS class name(s) or '' for the default presentation. It is called for each day in the datepicker before is it displayed.
Display some national holidays in the datepicker.
$(".selector").datepick...
SVN checkout ignore folder
...to 1.5 I have found that if you checkout only the top most folder and then selectively update, from then on updates only effect what you have checked out. Ie.
svn co -N foo
cd foo
svn up -N bar
svn up
The -N flag makes the operation non-recursive. The above will not check out anything else at the...
how to customize `show processlist` in mysql?
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Newer versions of SQL support the process list in information_schema:
SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST
You can ORDER BY in any way you like.
The INFORMATION_SCHEMA.PROCESSLIST table was added in MySQL 5.1.7. You can find out which version you're using with:
SELECT VERSION()
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What is an AngularJS directive?
...on.
The ng-model directive binds the value of HTML controls (input,
select, textarea) to application data.
The ng-bind directive binds application data to the HTML view.
<div ng-app="">
<p>Name: <input type="text" ng-model="name"></p>
<p ng-bind="name...
Convert text into number in MySQL query
...
This should work:
SELECT field,CONVERT(SUBSTRING_INDEX(field,'-',-1),UNSIGNED INTEGER) AS num
FROM table
ORDER BY num;
share
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improve this ...
How to perform Unwind segue programmatically?
...our method to connect your source controller to the unwind IBAction.
3) Select the segue in the source view controller's document outline of the storyboard (it will be listed near the bottom), and give it an identifier.
4) Call the unwind segue using this method from source view controller, s...
Why does PostgreSQL perform sequential scan on indexed column?
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If the SELECT returns more than approximately 5-10% of all rows in the table, a sequential scan is much faster than an index scan.
This is because an index scan requires several IO operations for each row (look up the row in the ...