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Oracle “Partition By” Keyword
Can someone please explain what the partition by keyword does and give a simple example of it in action, as well as why one would want to use it? I have a SQL query written by someone else and I'm trying to figure out what it does.
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Add primary key to existing table
I have an existing table called Persion . In this table I have 5 columns:
10 Answers
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Why are arrays of references illegal?
...omment to your edit:
Better solution is std::reference_wrapper.
Details:
http://www.cplusplus.com/reference/functional/reference_wrapper/
Example:
#include <iostream>
#include <functional>
using namespace std;
int main() {
int a=1,b=2,c=3,d=4;
using intlink = std::reference_...
How to Loop through items returned by a function with ng-repeat?
...port errors:
10 $digest() iterations reached. Aborting! jsfiddle is here: http://jsfiddle.net/BraveOstrich/awnqm/
4 Answer...
How do I handle too long index names in a Ruby on Rails ActiveRecord migration?
I am trying to add an unique index that gets created from the foreign keys of four associated tables:
9 Answers
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How to get index using LINQ? [duplicate]
Given a datasource like that:
7 Answers
7
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Why would an Enum implement an Interface?
I just found out that Java allows enums to implement an interface. What would be a good use case for that?
16 Answers
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SQL standard to escape column names?
...eUploader: {
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Variable number of arguments in C++?
How can I write a function that accepts a variable number of arguments? Is this possible, how?
17 Answers
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Add Keypair to existing EC2 instance
...ces. These steps were originally posted by Utkarsh Sengar (aka. @zengr) at http://utkarshsengar.com/2011/01/manage-multiple-accounts-on-1-amazon-ec2-instance/. I've made only a few small changes.
Step 1: login by default “ubuntu” user:
$ ssh -i my_orig_key.pem ubuntu@111.111.11.111
Step 2: ...