Why Oracle Certification is Necessary?

Ora_CerIn the current world IT specialists have become an important element for most the business setups. As technology world is moving a rapid pace it is important for IT consultant to keep themselves updated with latest technological trends and innovations in terms of hardware and software. The point to prove for IT professional that they have enough knowledge and level of competence to tackle business challenges. This is where Oracle certification comes into picture as it is program run by Oracle which provides level of expertise which IT professional has. Oracle certification is like shied for someone who is seeking to achieve top position in the information technology field.

As a Oracle certified professional you always have an advantage over other candidates when it comes to extra skills and achievements. Some of the employer prefer candidates with Oracle certification under their belt which would help you to stick out of the crowd. Some employer allowing their staff members to obtain Oracle certification which will give them chance to learn new things and develop new skills which can turn beneficial to company in the end.

Database Administration

It is up to you to decide which Oracle certification path you would like to go for as there are variety of courses offered by Oracle such as database, Java, middle ware, storage systems,  application and servers. Once you clear the examination of respected course you will be deliver Oracle certification program success kit which officially declares you as person with certain IT abilities and skills.  For DBA track There are three grades of Oracle certification, which are: Oracle Certified Associate (OCA), Oracle Certified Professional (OCP) and Oracle Certified Master (OCM). Oracle certification offers you the chance to improve upon current level of qualification and giving you an opportunity to prove yourself in the IT marketplace.


Importance of Online Backup compared to Local Backup

BackupAny organization’s success is always linked to data and its privacy, key factor for success of an organization is to backing up mission critical data. Even in the current era so many companies prefer local backup instead of online backup just because to save money and to manager IT cost within budget limits. I don’t see anything wrong with this approach but real concern is the security and availability of the mission critical data. The main hurdle with local storage is the storage media such external hard disks, optical disks and DVDs which can easily get corrupted even though you store such devices in safe place. Even small accident or static electric discharge can make the data irreparable which would cost a lot to the company.

One of the best ways to avoid such failure is to go for online backup option. This can be done in 2 ways, one in which you can setup locally and another in which you can opt for service from external provide who can store your mission critical data on some secured hosted server which available 24×7. For local setup you need PCs with good physical memory and terabyte storage and make sure that all these PCs should not used for any other purpose than backup. This way you can make backup process transparent to end users and will be automatic task which runs behind the scene while normal work is going on. The real drawback is the expense related to hosting server and cost associated with resource management, in this case System Administrator.

Database Management

Best way is to opt for backup service provider who has secured server and offers you monthly or annual plan. The thing about this option that you does not need to worry about anything as provider gives you complete package with reasonable rate and specialist to look at your backup task.

Important New Features of Oracle Database 12c

ora12cIn Oracle Open World 2012 took place in San Francisco, Larry Ellison announced that oracle database  also be cloud enabled in coming edition. Let discuss some of the important new feature of Oracle Database 12c.

  • Pluggable database means you have ability to create container database which consists all of the oracle level data and data dictionary. On the other end user can create pluggable database which contains user related data and data dictionary. The actual trump card is that you can unplug pluggable database from one container database and plugged into another just by updating data dictionary in the target container database.

Data warehousing

  • Can create duplicate index on the same set of columns which would be beneficial specially in the data warehouse environment.
  • More control over PL/SQL code access as role can be granted to code section.
  • Streamline data access by implicit result sets.
  • Can create Ref partition to relate several tables with same partition.
  • Huge enhancement on SQL WITH Clause to improve performance of PL/SQL code.
  • INDENTITY columns for auto numbering to catchup with MYSQL.
  • Support for 32k VARCHAR2, means values stored like a CLOB.

Hope there are many more features to come, now just wait for the official announcement from Oracle.

Oracle Vs. Microsoft SQL Server

OracleMicrosoftChoice between Oracle and Microsoft Sql Server has always been on the discussion while organization decides on database platform. Running Microsoft Sql Server costs much less than running Oracle because companies who have implemented Oracle spending millions of dollars every year compared to thousands of dollars for Microsoft Sql Server. Even though cost of maintaining Oracle database is higher than Microsoft Sql Server, it is still leading the market of database world. Let’s discuss some the facts that why Oracle is more preferred than Microsoft Sql Server.

Microsoft Sql Server is easy to administrator and works well where sizes of the database are less than few hundred of gigabytes and if it grows faster then there will be performance issue arises on the surface. In contrast Oracle can run multi terabyte database without any performance issue with the help of larger number of tuning options and features available along with software.

Database Services

Microsoft Sql server only offers vertical scalability so you can add more memory and CPU to the server to address vertical scalability. In contrast Oracle can offer you the same but once threshold is reached then we can upgrade to Real Application Cluster technology to address the horizontal scalability.

Microsoft Sql Server ties to Windows operating system which makes it a weak contender as Oracle works well on Windows and UNIX both. Most business considers UNIX operating system as it is more robust, stable and reliable compare to Windows which prone to crashes.

So It is up to organization to decide whether they want to go for Oracle or Microsoft Sql Server.