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by I Pravin Kumar
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or by I Pravin Kumar
Published on 2009-08-27T09:32:18Z
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2010/04/11
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Can somebody give me a picture as to what Matrix Tables are in the area of Database and the context in which they are best used ?
Thanks,
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I recently downloaded Ideras SQL virtual database, and tested it. There are a few things about this tool which caught my attention.My ScenarioIt is quite common in real life that sometimes observing or retrieving older data is necessary; however, it had changed as time passed by. The full database…
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To clone a database using Rman we used to require an existing Rman backup, on 11g we can clone databases using the "from active" database option.
In this case we do not require an existing backup, the active datafiles will be used as the source for the clone.
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Hello,
I'm using cPickle to save my Database into file. The code looks like that:
def Save_DataBase():
import cPickle
from scipy import *
from numpy import *
a=Results.VersionName
#filename='D:/results/'+a[a.find('/')+1:-a.find('/')-2]+Results.AssType[:3]+str(random.randint(0,100))+Results.Distribution+"…
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Snapshot database is one of the most interesting concepts that I have used at some places recently.
Here is a quick definition of the subject from Book On Line:
A Database Snapshot is a read-only, static view of a database (the source database). Multiple snapshots can exist on a source database and…
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Database ??
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Database ??????????
Java
WebLogic Server/????????·????
SOA/BPM/?????
???????/????
ID??/??????
?????EPM/BI
EPM/BI ???????
EPM/BI ????
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MySQL
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ORACLE MASTER…
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Given a large sparse matrix (say 10k+ by 1M+) I need to find a subset, not necessarily continuous, of the rows and columns that form a dense matrix (all non-zero elements). I want this sub matrix to be as large as possible (not the largest sum, but the largest number of elements) within some aspect…
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I have a "SquareMatrix" template class which inherits "Matrix" template class, like below:
SquareMatrix.h:
#ifndef SQUAREMATRIX_H
#define SQUAREMATRIX_H
#include "Matrix.h"
template <class T> class SquareMatrix : public Matrix<T>
{
public:
T GetDeterminant();
};
template…
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I'm trying figure out how to get an OpenGL specified object to be displayed correctly according to the device orientation (ie. according to the gravity vector from the accelerometer, and heading from compass).
The GLGravity sample project has an example which is almost like this (despite ignoring…
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I'm trying figure out how to get an OpenGL specified object to be displayed correctly according to the device orientation (ie. according to the gravity vector from the accelerometer, and heading from compass).
The GLGravity sample project has an example which is almost like this (despite ignoring…
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Hi
I'm learning templates in C++ so I decied to write matrix class which would be a template class. In Matrix.h file I wrote
#pragma once
#include "stdafx.h"
#include <vector>
using namespace std;
template<class T>
class Matrix
{
public:
Matrix();
~Matrix();
GetDataVector();
…
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