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How to round an average to 2 decimal places in PostgreSQL?
...old syntax for casting,
SELECT ROUND(AVG(some_column)::numeric,2)
FROM table;
works with any version of PostgreSQL.
There are a lack of overloads in some PostgreSQL functions, why (???): I think "it is a lack" (!), but @CraigRinger, @Catcall and the PostgreSQL team agree about "pg's historic r...
How to “properly” print a list?
...ed characters from a string using its translate() method with None for the table argument followed by a string containing the character(s) you want removed for its deletechars argument.
lst = ['x', 3, 'b']
print str(lst).translate(None, "'")
# [x, 3, b]
If you're using a version of Python befor...
What datatype to use when storing latitude and longitude data in SQL databases? [duplicate]
... those fields in mysql to benefit from the fact they are integers:
Create Table: CREATE TABLE `Locations` (
`lat` int(10) unsigned NOT NULL,
`lon` int(10) unsigned NOT NULL,
`location` text,
PRIMARY KEY (`lat`,`lon`) USING BTREE,
KEY `index_location` (`locationText`(30))
) ENGINE=InnoDB D...
IOS7 : UIScrollView offset in UINavigationController
...omaticallyAdjustsScrollViewInsets is deprecated
You should now use:
self.tableView.contentInsetAdjustmentBehavior = .never
I also encourage you to check this question and its answer to get a better understanding of those properties
...
What is data oriented design?
...gner will also likely split out infrequently accessed data into a separate table rather than creating a table with huge number of columns were only a few of the columns are ever used. He might also choose to denormalize some of the tables so that data don't have to be accessed from multiple location...
Which one is the best PDF-API for PHP? [closed]
...
mpdf unfortunately doesn't seem to handle large table cells well. As soon as the content exceeds a page, it starts to scale down, which makes it useless for any project that has big tables. Apart from that; it's easy to use, performant, and well documented.
...
Does opacity:0 have exactly the same effect as visibility:hidden
...s* No No
display: none Yes No No
* Yes inside a table element, otherwise No.
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“Auto Layout still required after executing -layoutSubviews” with UITableViewCell subclass
Using XCode 4.5 and iOS 6, I'm developing an app with a simple table view with custom cells. I've done this a hundred times in iOS 5 and below, but for some reason the new autoLayout system is giving me a lot of trouble.
...
Convert text into number in MySQL query
... field,CONVERT(SUBSTRING_INDEX(field,'-',-1),UNSIGNED INTEGER) AS num
FROM table
ORDER BY num;
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setting multiple column using one update
How to set multiple columns of a table using update query in mysql?
2 Answers
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