Posted
by Clay
on Stack Overflow
See other posts from Stack Overflow
or by Clay
Published on 2010-03-17T21:17:13Z
Indexed on
2010/03/17
21:21 UTC
Read the original article
Hit count: 177
We are evaluating Tableau and noticed that it doesn't appear to recognize sparse columns in our SQL Server 2008 tables. Is this possible or are there any common workarounds?
© Stack Overflow or respective owner
as seen on Dot net Slackers
- Search for 'Dot net Slackers'
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…
>>> More
as seen on Oracle Blogs
- Search for 'Oracle Blogs'
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.
In order to clone with the source database…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
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+"…
>>> More
as seen on SQL Authority
- Search for 'SQL Authority'
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…
>>> More
as seen on Oracle Blogs
- Search for 'Oracle Blogs'
Database ??
Database ???????
Database ??????????
Java
WebLogic Server/????????·????
SOA/BPM/?????
???????/????
ID??/??????
?????EPM/BI
EPM/BI ???????
EPM/BI ????
OS/???
????
?????
MySQL
Database ??
????
??
?????????
???
??
ORACLE MASTER…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
I have two sparse matrices, m1 and m2:
> m1 <- Matrix(data=0,nrow=2, ncol=1, sparse=TRUE, dimnames=list(c("b","d"),NULL))
> m2 <- Matrix(data=0,nrow=2, ncol=1, sparse=TRUE, dimnames=list(c("a","b"),NULL))
> m1["b",1]<- 4
> m2["a",1]<- 5
> m1
2 x 1 sparse Matrix of class…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
The following code runs too slowly even though everything seems to be vectorized.
from numpy import *
from scipy.sparse import *
n = 100000;
i = xrange(n); j = xrange(n);
data = ones(n);
A=csr_matrix((data,(i,j)));
x = A[i,j]
The problem seems to be that the indexing operation is implemented…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
With the new sparse checkout feature in Git 1.7.0, is it possible to just get the contents of a subdirectory like how you can in SVN? I found this example, but it preserves the full directory structure. Imagine that I just wanted the contents of the 'perl' directory, without an actual directory named…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
I can create a sparse php array (or map) using the command:
$myarray = array(10=>'hi','test20'=>'howdy');
I want to serialize/deserialize this as JSON. I can serialize it using the command:
$json = json_encode($myarray);
which results in the string {"10":"hi","test20":"howdy"}. However…
>>> More
as seen on Dot net Slackers
- Search for 'Dot net Slackers'
In this article, Dino Esposito focuses on the core part of the ASP.NET MVC framework - the controller - and shares some considerations about the ideal structure it should have as a class and its intended role.
>>> More
