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Best way to select random rows PostgreSQL
... of depez outlining several more approaches:
http://www.depesz.com/index.php/2007/09/16/my-thoughts-on-getting-random-row/
1 "large" as in "the complete table will not fit into the memory".
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Entity Attribute Value Database vs. strict Relational Model Ecommerce
... Joomla (regular relational structure):
https://forum.virtuemart.net/index.php?topic=58686.0
It seems, that Magento's EAV performance is a real showstopper.
That's why I'm leaning towards a normalized structure. To overcome the lack of flexibility I'm thinking about adding some separate data dicti...
vs vs for inline and block code snippets
...nly I found way to show raw HTML code (for debugging purpose) in WordPress/PHP templates...
– sphakka
Apr 2 '17 at 9:37
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Multiple github accounts on the same computer?
...─ id_rsa
└── id_rsa.pub
First, name that key pair – adding a descriptive name will help you remember which key is used for which user/remote
# change to your ~/.ssh directory
$ cd ~/.ssh
# rename the private key
$ mv id_rsa github-mainuser
# rename the public key
$ mv id_rsa.pub githu...
Clicking the text to select corresponding radio button
I'm creating a quiz web application using PHP. Each question is comprised of a separate <label> and has 4 possible choices, using radio buttons to allow the user to select his/her answer. The current HTML for a single question looks like:
...
Why is the gets function so dangerous that it should not be used?
... new-line character is read, or end-of-file or a
read error occurs.
Description
4 The gets_s function reads at most one less than the number of characters specified by n
from the stream pointed to by stdin, into the array pointed to by s. No additional
characters are read after a new...
Column order manipulation using col-lg-push and col-lg-pull in Twitter Bootstrap 3
...iew..
Brandon Schmalz - Full Stack Web Developer
Have a look at full description here
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Hibernate vs JPA vs JDO - pros and cons of each? [closed]
... especially when there are a lot of objects.
There is a detailed technical description of Hibernate's dirty checking mechanism in this SO answer:
JPA with HIBERNATE insert very slow
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Stopping scripters from slamming your website
... Workshop, the subsidiary of Woot that does the design, writes the product descriptions, podcasts, blog posts, and moderates the forums. I work with CSS/HTML and am only barely familiar with other technologies. I work closely with the developers and have talked through all of the answers here (and m...
Is there a REAL performance difference between INT and VARCHAR primary keys?
...dex)) ENGINE=InnoDB;
Then, I filled 10 million rows in each table with a PHP script whose essence is like this:
$pdo = get_pdo();
$keys = [ 'alabam', 'massac', 'newyor', 'newham', 'delawa', 'califo', 'nevada', 'texas_', 'florid', 'ohio__' ];
for ($k = 0; $k < 10; $k++) {
for ($j = 0; $j ...