Posts Tagged Oracle

ShwetaHow to overcome DBF Corruption-

Monday, April 26th, 2010

Database computing- major presence of Oracle, Oracle is an RDBMS (Relational Database Management System), developed and marketed by Oracle Corporation. It stores all your valuable data in the DBF file. The DBF file contains all Oracle database objects, such as tables, reports, forms, macros, views, constraints, triggers, stored procedures, and more.

If any of these database objects or the entire database gets damaged, you can not access your valuable data from it. In such circumstances, Oracle Database Recovery software is required to extract data from the database.

In order to overcome DBF corruption, Oracle offers a number of methods to detect and repair data files. These options include:

DBVerify- It is an external command-line utility, which enables you to validate offline data files of Oracle database. In addition to the offline data files, you can also use this utility for checking validity of the backup data files.

ANALYZE … VALIDATE STRUCTURE- It is used to verify every single data block in the analyzed object. If this tool finds any corruption, rows are added to INVALID_ROWS table.

DB_BLOCK_CHECKING- If DB_BLOCK_CHECKING argument is set as TRUE, Oracle carries out a walk-through of the data in database block for checking whether it’s self-consistent or not. This block checking process may add 1 to 10% overhead to server. This setting is recommended only if you can accept the overhead.

DBMS_REPAIR- It enables you to find and fix database corruption. This process needs two administration Oracle database tables for holding the list of damaged blocks and the index keys which point to those damaged blocks.

Source: programmersheaven.com

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NaggieOracle launches worldwide cloud computing tour

Thursday, February 11th, 2010

With the launching a roughly 50-date global road show on the topic for developers and system administrators, Oracle has officially put both the legs on the cloud-computing bandwagon.

In contrast to CEO Larry Ellison’s well-publicized mocking of cloud computing, the move stands, which he has deemed a rebranding and conflation of existing technologies. But it’s not as if the ongoing tour wasn’t telegraphed.

During a recent webcast on how the company plans to use the assets it gained from the purchase of Sun Microsystems, executives indicated Oracle’s main focus will be on helping customers build private clouds. In 2008, Ellison himself said, albeit with sarcasm, that Oracle would make cloud computing announcements in the future.

Ellison said, “If orange is the new pink we’ll make orange blouses. I’m not going to fight this thing”. “Maybe we’ll do an ad. I don’t understand what we would do differently in the light of cloud computing other than … change the wording on some of our ads.”

But the road show will apparently go further than that by detailing in depth Oracle’s particular take on cloud computing, a label that has been slapped on everything from virtualized, scalable pools of computing infrastructure, such as that sold by Amazon Web Services, to SaaS (software-as-a-service) applications.

Events’ attendees will be able to “break through the haze” surrounding the topic, as “Oracle experts” clarify how companies can take advantage of “enterprise cloud computing.” The topics will include the tips to develop a private cloud, how to move current IT environments to a cloud-like structure, and how to use public cloud options such as AWS.

According to 451 Group analyst China Martens, the company simply has to stake a public claim in cloud computing given how pervasive the market forces in this direction are. One issue facing Oracle is how to include the Sun technologies in its plans, and that work is probably not complete, she added.

Already the company has made it clear that it has no immediate designs on Amazon’s turf, as it has abandoned Sun’s plans for a public cloud service. According to Martens, Oracle has sometime to formulate its own answer.

She added, whatever [Ellison] says is going to get lots and lots of play, and sometimes he says whatever comes into his head. And Oracle has to pull back and rephrase that. That’s what they’re doing, but slowly and carefully. They can set their own pace but have to show they’re listening to the market and [are] not in a bubble.

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NaggieOracle revises plan to shut down Project Kenai

Wednesday, February 10th, 2010

Now, Oracle will enable projects hosted on the soon-to-be-shut Projects Kenai site to be moved to the java.net site, the company said in a revised of what it had said previously.

Last week in a blog posted, Oracle’s Ted Farrell, chief architect and senior vice president for tools and middleware, cited java.net as the destination for projects being moved off of the Project Kenai hosting site that had been set up by newly acquired Sun Microsystems.

According to Farrell, their plan is to shut down kenai.com and focusing efforts is on java.net as the hosted development community. Farrell also said, we are in the process of migrating java.net to the kenai technology. This means that any project currently hosted on kenai.com will be able to continue as you are on java.net. We are still working out the technical details, but the goal is to make this migration as seamless as possible for the current kenai.com projects.

Farrell advised users to stay on kenai.com for now, let Oracle work through details, and wait for the company to report back later this month.

According to the company, Kenai would be shut down by April 2 and projects should be moved by then.

“I think we did a poor job at communicating our plans for Kenai.com to you. I would like to remedy that now. Our strategy is simple. We don’t believe it makes sense to continue investing in multiple hosted development sites that are basically doing the same thing,” Farrell said.

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NaggieApple’s IPad, Oracle’s Plan for Sun Share Limelight

Saturday, January 30th, 2010

This week, it was seemed that all eyes were on Apple’s unveiling of the long-awaited iPad, and on the same day Oracle revealed its plans for Sun Microsystems’ technology, while those at Sun braced for the merger and began their public goodbyes. We also had a flurry of financial reports this week and some Internet weirdness associated with President Barack Obama’s first State of the Union address.

1. Apple announces iPad, Apple iPad: 25 unanswered questions, How does the iPad compare to netbooks? And iPad as netbook-killer concept ignites controversy: After months of rumors, speculation and fever-pitch media hype, Apple CEO Steve Jobs showed off the iPad tablet. While there was plenty of the customary swooning over a new Apple product to be found, the general consensus seemed to be: That’s it?! We’ve been all excited for this?! Jobs insist that the iPad is better than a netbook, but that notion has ignited a debate.

2. Oracle to scale back Sun server line, make other changes Oracle hails Java but kills Sun cloud: Meanwhile, Oracle began to lay out its plans for Sun technologies and products this week.

3. With emotion, Sun’s long good-bye nears the finish and Sun’s Scott McNealy: Thanks for a great 28 years: Sun leaders, including James Gosling, the father of Java, and former Chairman and CEO Scott McNealy offered public farewells to a company they have loved.

4. ACTA talks in Mexico to address transparency concerns: Secret talks that have been ongoing among nations aiming to craft an anticounterfeiting trade agreement (ACTA) haven’t seemed to draw a whole lot of attention, but for our money this is some seriously big news. Negotiators got together again this week to work on the measure in Mexico.

5. Congressional Web sites hacked near Obama speech, US House leaders ask for investigation into hackings and No lie! Wilson to respond to State of Union on Facebook: At about the time that President Obama’s State of the Union speech began, dozens of congressional Web sites were hacked. U.S. House of Representatives leaders, predictably given their fondness for holding hearings, called for an investigation into the site defacements. Meanwhile, in an even freakier bit of related news, Joe Wilson, a South Carolina Republican, gave a response to the speech via Facebook. His was not the official GOP response. For those who have forgotten, Wilson was the congressman who yelled out “you lie” during President Obama’s speech on the now-stalled health-care reform.

6. Wall Street Beat: Economic concerns shadow tech profits: IT bellwethers including Microsoft and Apple released quarterly earnings reports this week, with good news from many on the financial front, but IT investors remained skittish.

7. EFF: Browsers can leave a unique trail on the Web: According to the Electronic Frontier Foundation, web browsers leave a unique footprint for individual PCs with information that online advertising systems can then gather for purposes that concern privacy experts. The EFF has created a tool that reveals the information that a browser collects. The EFF further warned that users should not be misled into believing that disabling cookies provides real protection.

8. FCC’s McDowell: Net neutrality would face legal challenge: If the U.S. Federal Communications Commission goes forward with net neutrality regulations, its authority in that regard will be challenged in court, Commission member Robert McDowell said.

9. Microsoft posts Windows Mobile 6.5 SDK by mistake: The “oopsie” entry this week comes from Microsoft, which inadvertently posted the WIndows Mobile 6.5 software developers kit online. Some developers downloaded it before Microsoft yanked it off the Web, but had trouble using it, which was a good sign that it really was not ready for release yet. They reported that the SDK includes widget tools and an emulator for the most recent version of Windows Mobile.

10. 419 Internet scams on the increase: This news truly unfathomable, 419, or advance-fee, frauds on the Internet soaked victims for at least US$9.3 billion last year. Most of the scams continued to originate in Nigeria. We’re scratching our heads over why it’s so hard for people to resist responding to e-mails rife with misspellings, typos and bad grammar that want them to advance money to someone they have never heard of who promises the recipient fantastical wealth.

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