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How do I design a class in Python?
...ormat but could easily convert to other formats when outputting (Postgres, MySQL, MongoDB).
Now let's think through the Database object. What does this hide and store? Well clearly it can't store the full contents of the database, since that is why we have a database! So what is the point? The goal...
How to change the ROOT application?
...fault application of a Tomcat 6 webserver to a different application than "ROOT" (inside webapps folder). What is the best way to do this?
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Subqueries vs joins
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Here's an example of how subqueries are evaluated in MySQL 6.0.
The new optimizer will convert this kind of subqueries into joins.
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Get generated id after insert
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I had quite a bit of problems with this on mySQL, the LAST_INSERT_ID is not reliable way to get the ID, if you have users hammering the database, the ID returned may not be the ID that was inserted by the query you have run, several other users might impact on the ret...
How do I remove/delete a folder that is not empty?
...ample, if top == '/', it
# could delete all your disk files.
import os
for root, dirs, files in os.walk(top, topdown=False):
for name in files:
os.remove(os.path.join(root, name))
for name in dirs:
os.rmdir(os.path.join(root, name))
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Convert form data to JavaScript object with jQuery
...ou're trying to serialize Rails-like forms, you may want to remove element root from the generated keys. To achieve that, I've added a new param keyMap and the following line: key = if keyMap? then keyMap(@name) else @name. Now you can pass mapping function like (name) -> name.match(/\[([^\]]+)]/...
What is sharding and why is it important?
...cross multiple logical or physical nodes (in the case of my understanding (mySQL) multiple databases, most likely housed on different logical hardware). Horizontal partitioning is a less specific term, of which "Sharding" is a subset. Again using mySQL as an example, a mySQL partition is handled by...
Deploying my application at the root in Tomcat
I have the war file of my application. I need to deploy this at the root level. The current URL is http://localhost:8080/war_name/application_name .
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Best practice for localization and globalization of strings and labels [closed]
...ages should access them
Solution: For this purpose I make a folder in the root of web application called Global_Resources and a folder to store global file for each sub folders we named it 'Local_Resources'
Issue: Each subsystems/subfolders/modules member should override the Global_Resources membe...
Select something that has more/less than x character
...nks.
Here's the link to the MSDN
For oracle/plsql you can use Length(), mysql also uses Length.
Here is the Oracle documentation:
http://www.techonthenet.com/oracle/functions/length.php
And here is the mySQL Documentation of Length(string):
http://dev.mysql.com/doc/refman/5.1/en/string-functi...