A corrupt table in MS Access means lost time and data. It can lead to a loss of revenue or even employment. Learn how you might be able to recover most of the data when the worst happens.
With Master Data Services, IT organizations can centrally manage critical data assets companywide.
Too many SQL Servers to keep up with?Download a free trial of SQL Response to monitor your SQL Servers in just one intuitive interface."The monitoringin SQL Response is excellent." Mike Towery.
If I have systems that are based on realtime data, how can I ensure that all the information that is current is redundantly stored in a file? So that when the program starts again, it uses this information to initialize itself back to where it was when it closed.
I know of xstream and HSQLDB. but wasn't sure if this was the best option for data that needs to be a literal carbon copy.
I just installed Rails 3 and created my first app. The install of Rails3 + ruby 1.9 went very smoothly but I am missing the generate script in script/generate.
I have created a new app from scratch with no options to verify.
Any idea why this is happening and how to fix it?
When create an Oracle Database on the Amazon cloud you will need to store you database files somewhere on the EC2 cloud. There are basically three places where database files can be stored:
1. Local drive - This is the local drive that is part of the virtual server EC2 instance.
2. Elastic Block Storage (EBS) - Network attached storage that appears as a local drive.
3. Simple Storage Server (S3) - 'Storage for the Internet'.
S3 is not high speed and intended for store static document type files. S3 can also be used for storing static web page files. Local drives are ephemeral so not appropriate to be used as a database storage device. The leaves EBS which is the best place to store database files. EBS volumes appear as local disk drives. They are actually network-attached to an Amazon EC2 instance. In addition, EBS persists independently from the running life of a single Amazon EC2 instance.
If you use an EBS backed instance for your database data, it will remain available after reboot but not after terminate. In many cases you would not need to terminate your instance but only stop it, which is equivalent of shutdown. In order to save your database data before you terminate an instance, you can snapshot the EBS to S3.
Using EBS as a data store you can move your Oracle data files from one instance to another. This allows you to move your database from one region or or zone to another. Unfortunately, to scale out your Oracle RDS on AWS you can not have read only replicas. This is only possible with the other Oracle relational database - MySQL.
The free micro instances use EBS as its storage.
This is a very good white paper that has more details:
AWS Storage Options
This white paper also discusses: SQS, SimpleDB, and Amazon RDS in the context of storage devices. However, these are not storage devices you would use to store an Oracle database.
This slide deck discusses a lot of information that is in the white paper:
AWS Storage Options slideshow
As Energy Star certification for data centers moves closer to becoming a reality, the EPA has also begun crafting specification for certifying data center storage devices.
Among the big news this week in green data center management: Singapore pledges to cut carbon emissions by 16 percent by 2020, and for the second year in a row, data security is the primary concern and driver of IT asset disposition compliance efforts.
There is a popular design for a database that requires a built-in audit-trail of amendments and additions, where data is never deleted, but merely superseded by a later version. Whilst this is conceptually simple, it has always made for complicated SQL for reporting the latest version of data. Alex joins the debate on the best way of doing this with an example using an indexed view and the filtered index.
Hi All,
I need to localize an application and have noticed that several countries don't appear in the list of county codes associated to cultureInfo.
One example is Cyprus, I assume there might be others.
If i need to localize settings for Cyprus (or other missing ones) how would I rename my resource files that they would render the correct text and such?
Thanks
I've created a custom control that subclasses TreeView. Right now it's completely empty, doesn't override anything. However when I place an instance in the designer the 'Auto' value for the Width and Height fields is no longer available as it is with the default TreeView. What am I missing?
After a junit test case ran, should delete test data related with this test case?
Will keeping the test data help the developers to debug the code?
Thanks
Joseph
I'm currently developing a replication system to keep data in-synch between an arbitrary number of servers.
Some of these servers exist in one cluster on one LAN. Others exist somewhere else in the world.
I'm wondering what are the pros/cons of different paths that we choose to flow replicated data on between servers?
In other words, what are the different strategies to load balance the replication process ?
Hi,
I want to reinstall Ubuntu keeping my data intact. I have 160 GB hardrive (sata or pata I don't know but it's slim and made in China) with a 40 GB ext3 partition, a 4GB swap memory and 3 other partition with a FAT32 file system. I have around 4GB space on my drive where Linux is installed.
I'd like to keep the data intact, especially the Downloads folder, desktop, and /var/www; And I no longer have access to any other machines or external storage devices.
I want to delete file in svn.
I do this so:
svnClient.Delete( pathToFile, new SvnDeleteArgs {Force = true} );
When I want to commit chenges, in svn file status is 'missing', but I need 'deleted'.
What I do wrong?
Is there a way to program the following SQL query
SELECT dbo.Assets_Master.Serial_Number, dbo.Assets_Master.Account_Ident, dbo.Assets_Master.Disposition_Ident
FROM dbo.Assets_Master LEFT OUTER JOIN
dbo.Assets ON dbo.Assets_Master.Serial_Number = dbo.Assets.Serial_Number
WHERE (dbo.Assets.Serial_Number IS NULL)
in c# .net code using dataviews or data relation or something else?
I have a spreadsheet of about 4k rows and a data table that should have the same records but if not I want to display the missing (non-matching) records from the table.
Thanks,
Eric
var phoneBookTableValue = [];
phoneBookTableValue.push({ "key":"1", "value":["3396,Accounting ,CCH,,,,","1"]});
phoneBookTableValue.push({ "key":"2", "value":["3284,Acute Care ,CCH,,,,","2"]});
phoneBookTableValue.push({ "key":"3", "value":["3265,Acute'Care East ,CCH,,,,","3"]});
When running the javascript file I get the error "missing ] after element list. Can U help me? PLZ!
I'm well aware that similair topics have been brought up before
e.g. http://stackoverflow.com/questions/1639043/entity-framework-4-vs-nhibernate
But instead of arguments like:
NHibernate have been around longer and is more mature
EF4 is drag n drop and not enterprisy
EF4 and LinqToSql are ...
I would like to see a more detailed list of features that you consider missing from EF4.
Personally, I think the lack of enum support is the biggest drawback of EF4.
Now a day nothing is more important than backing up your data of your computer. But there are still many people who do not understand the importance of protecting data. Therefore when they proceed fo... [Author: Susan Brown - Computers and Internet - May 08, 2010]
Visualizing Data with the Google Maps API: A Journey of 245k Points
What can you do with some awesome geospatial data, the Google Maps API, and a couple of days of hacking and analysis? Brendan and Paul walk through how they used the Maps API to visualize the CLIWOC database, and pass on tips and trick for doing the same with other geospatial datasets. CLIWOC (Climatological Database for the World's Oceans, 1750-1850): www.ucm.es
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df <- data.frame(var1=c('a', 'b', 'c'), var2=c('d', 'e', 'f'), freq=1:3)
What is the simplest way to expand the first two columns of the data.frame above, so that
each row appears the number of times specified in the column 'freq'?
In other words, go from this:
>df
var1 var2 freq
1 a d 1
2 b e 2
3 c f 3
To this:
>df.expanded
var1 var2
1 a d
2 b e
3 b e
4 c f
5 c f
6 c f
<b>eWeek:</b> "Data Apple collects about users from its vaunted iPhone is so valuable that the company must build a special search engine just to keep Google from gleaning insight from that data, analysts say."
Linq to Xml is the best
method, I think, for
querying, constructing and writing Xml data. In this article, I'll show
how to
read Rss data with this powerful Xml technique, Linq. Now, create a
Website in
Visual Studio, add a Textbox and a [read more....]
Experiments in Big Data Visualization on Maps
Brendan Kenny and Mano Marks continue their series on using the CanvasLayer library and HTML5 APIs to visualize large amounts of data on top of Google maps. This week they look at loading Shapefiles and KML directly in the browser and using WebGL to render their content over a map.
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