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What's the difference between RANK() and DENSE_RANK() functions in oracle?
What's the difference between RANK() and DENSE_RANK() functions? How to find out nth salary in the following emptbl table?
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How to subtract X days from a date using Java calendar?
Anyone know a simple way using Java calendar to subtract X days from a date?
10 Answers
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Iterate a list as pair (current, next) in Python
I sometimes need to iterate a list in Python looking at the "current" element and the "next" element. I have, till now, done so with code like:
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using jquery $.ajax to call a PHP function
This may be a simple answer, but I'm using jQuery's $.ajax to call a PHP script. What I want to do is basically put that PHP script inside a function and call the PHP function from javascript.
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When to use static classes in C# [duplicate]
Here's what MSDN has to say under When to Use Static Classes :
11 Answers
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Create code first, many to many, with additional fields in association table
I have this scenario:
6 Answers
6
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mysql_config not found when installing mysqldb python interface
I am trying to get a Python script to run on the linux server I'm connected to via ssh. The script uses mysqldb. I have all the other components I need, but when I try to install mySQLdb via setuptools like so:,
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How do I use reflection to invoke a private method?
There are a group of private methods in my class, and I need to call one dynamically based on an input value. Both the invoking code and the target methods are in the same instance. The code looks like this:
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Maven Modules + Building a Single Specific Module
I have a multi-module Maven project with a parent project P and three sub-modules A , B , and C . Both B and C are war projects and both depend on A .
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MySQL, Check if a column exists in a table with SQL
I am trying to write a query that will check if a specific table in MySQL has a specific column, and if not — create it. Otherwise do nothing. This is really an easy procedure in any enterprise-class database, yet MySQL seems to be an exception.
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