Sandra Briggs

1596907733

Oracle Database Administration II Exam

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Grace  Lesch

Grace Lesch

1622447460

Provisioning an Oracle Autonomous Database on the Oracle Cloud

Overview of Oracle Autonomous Data Warehouse (ADW)
Oracle Autonomous Data Warehouse (ADW) is a fully managed and high-performance solution. It includes all of the Oracle Database advantages in the environment adjusted and optimized for the Data Warehouse workload. Thus, you don’t need to take more effort and resources in the DBA role to do the database management and optimization jobs.
Notice the most essential pluses of Oracle Autonomous Database:

  • **Self-Driving – **The user defines service levels while the database makes them happen.
  • **Self-Securing – **It protects the data from both external attacks and malicious internal users.
  • **Self-Repairing **– It providesautomated protection from all downtime.

#database #oracle #oracle cloud #oracle autonomous database

Justyn  Ortiz

Justyn Ortiz

1603465200

Oracle Kills 402 Bugs in Massive October Patch Update

Business software giant Oracle is urging customers to update their systems in the October release of its quarterly Critical Patch Update (CPU), which fixes 402 vulnerabilities across various product families.

Well over half (272) of these vulnerabilities open products up to remote exploitation without authentication. That means that the flaw may be exploited over a network without requiring user credentials.

The majority of the flaws are in Oracle Financial Services Applications (53), Oracle MySQL (53), Oracle Communications (52), Oracle Fusion Middleware (46), Oracle Retail Applications (28) and Oracle E-Business Suite (27). But overall, 27 Oracle product families are affected by the flaws. Users can find a patch availability document for each product, available here.

“Oracle continues to periodically receive reports of attempts to maliciously exploit vulnerabilities for which Oracle has already released security patches,” according to the company’s release on Tuesday. “In some instances, it has been reported that attackers have been successful because targeted customers had failed to apply available Oracle patches. Oracle therefore strongly recommends that customers remain on actively-supported versions and apply Critical Patch Update security patches without delay.”

While details of the flaws themselves are scant, two of the critical vulnerabilities disclosed by Oracle rank the highest severity score – 10 out of 10 – on the CVSS scale.

These include a flaw in the self-service analytics component of Oracle Healthcare Foundation, which is a unified healthcare-analytics platform that is part of the Oracle Health Science Applications suite. The flaw (CVE-2020-1953), which can be remotely exploited without requiring any user credentials, requires no user interaction and is easy to exploit, according to Oracle. Affected supported versions include 7.1.1, 7.2.0, 7.2.1 and 7.3.0.

The second severe flaw (CVE-2020-14871) exists in the pluggable authentication module of Oracle Solaris, its enterprise operating system for Oracle Database and Java applications (part of the Oracle Systems risk matrix). The flaw is also remotely exploitable without user credentials, requires no user interaction and is a “low-complexity” attack. Versions 10 and 11 are affected.

Sixty-five of the vulnerabilities also had a CVSS base score of 9.8 (and six had a score of 9.4) out of 10, making them critical in severity.

Oracle did offer some workarounds, advising that for attacks that require certain privileges or access to certain packages, removing the privileges or the ability to access the packages from users that do not need the privileges may help reduce the risk of successful attack. Users can also reduce the risk of successful attack by blocking network protocols required by an attack.

However, both these approaches may break application functionality, and Oracle does not recommend that either approach be considered a long-term solution as neither corrects the underlying problem.

“Due to the threat posed by a successful attack, Oracle strongly recommends that customers apply Critical Patch Update security patches as soon as possible,” according to the company.

Oracle releases its CPUs on the Tuesday closest to the 17th day of January, April, July and October.

Previous quarterly updates have stomped out hundreds of bugs across the company’s product lines, including one in April that patched 405. There are also out-of-band updates; in June for instance, Oracle warned of a critical remote code-execution flaw in its WebLogic Server being actively exploited in the wild.

#vulnerabilities #web security #cpu #critical patch update #cve-2020-14871 #cve-2020-1953 #oracle #oracle communications #oracle e-business suite #oracle financial services applications #oracle fusion middleware #oracle mysql #oracle retail applications #quarterly patch update #remote code execution #security update

Ruth  Nabimanya

Ruth Nabimanya

1620633584

System Databases in SQL Server

Introduction

In SSMS, we many of may noticed System Databases under the Database Folder. But how many of us knows its purpose?. In this article lets discuss about the System Databases in SQL Server.

System Database

Fig. 1 System Databases

There are five system databases, these databases are created while installing SQL Server.

  • Master
  • Model
  • MSDB
  • Tempdb
  • Resource
Master
  • This database contains all the System level Information in SQL Server. The Information in form of Meta data.
  • Because of this master database, we are able to access the SQL Server (On premise SQL Server)
Model
  • This database is used as a template for new databases.
  • Whenever a new database is created, initially a copy of model database is what created as new database.
MSDB
  • This database is where a service called SQL Server Agent stores its data.
  • SQL server Agent is in charge of automation, which includes entities such as jobs, schedules, and alerts.
TempDB
  • The Tempdb is where SQL Server stores temporary data such as work tables, sort space, row versioning information and etc.
  • User can create their own version of temporary tables and those are stored in Tempdb.
  • But this database is destroyed and recreated every time when we restart the instance of SQL Server.
Resource
  • The resource database is a hidden, read only database that holds the definitions of all system objects.
  • When we query system object in a database, they appear to reside in the sys schema of the local database, but in actually their definitions reside in the resource db.

#sql server #master system database #model system database #msdb system database #sql server system databases #ssms #system database #system databases in sql server #tempdb system database

Ananya Gupta

1599222949

5 Steps To Get An Oracle Database Certification

So, do you have to become Oracle Certified? it has been a debatable issue for a short time, but one thing is certain: the Oracle Certification provides an accurate measure of your technical abilities.

Additionally, it gives you a foothold over people competing for the database administration positions you desire. Join Oracle online certification course and get complete guidance

Here are the steps to getting an Oracle Database certification:

  1. Associate Certification

The first step to getting your Oracle is getting the Associate Certification, which needs that the person passes two tests to become an Oracle Certified Associate (OCA). With this qualification, you’ll add junior management as a team member or an application developer. to urge the associate certification, you’ve got to pass in one among the three tests explained below and therefore the final “Oracle Database 11g: Administration I” test.Join best Oracle online training program to improve your skills.

Step 1: Take one among the subsequent three courses

Oracle Database 12c: SQL Fundamentals 1Z0-061

The examination tests ability to make, retrieve, maintain, and edit data during a database. Mainly, this involves a grasp of important database administration concepts like an electronic database. Additionally, the necessity to know and use SQL is extremely important, because the test would require you to demonstrate your SQL programming skills.

Oracle Database SQL Expert 1Z0-047

In general, this is often a complicated version of the “Introduction to Oracle9i SQL” test. you’ll need proficiency in 76 topics to achieve this exam. you would like to possess a high understanding of database objects, control privileges, and system-level queries. The questions require a deep understanding of SQL, and are multiple parts in nature, requiring the application of concepts instead of mere memorization of answers. Experience in database administration will offer you a notable advantage during this test.

Oracle Database 11g: SQL Fundamentals I 1Z0-051

This test is an improved version of the “Introduction to Oracle9i SQL” test. The content is newer and includes set and conditional operators, which are absent within the older version. Therefore, you’d be happier choosing this test over the previous.

Step 2: Oracle Database 11g: Administration I 1Z0-052

The test requires knowledge on the way to found out database environments and secure Oracle instances in any network environment. Other concepts needed to pass this exam include understanding of database backup and recovery, Oracle Database Architecture, also as the configuration of security instances. The questions require the application of concepts, not just memorization of data.

  1. Professional Certification

The professional certification allows you to manage large databases and develop large-scale database applications. In summary, to become an Oracle Certified Professional (OCP), you’ve got to require an instructor-led course, an exam, and a hands-on course.

Step 1: Be an Oracle Certified Associate

You must have the OCA certification as a pre-requisite for this course.

Step 2: Take an Exam

The second step within the OCP certification process is to require a course from a variety of about 50 courses and sit an exam. The list of those courses is out there on the Oracle site. The broad selection means you’ll choose the course that most accurately fits your training requirements. Note that you simply cannot meet the wants of this course through self-study; you’ve got to require an instructor-led class, a virtual class, or learn through training-on-demand.

Step 3: Submission of an Already Completed Course

In this step, you’re required to submit a previously completed course from an inventory of 21 courses. Alternatively, Oracle allows submissions from courses taken within the previous step.

Step 4: Oracle Database 11g: Administration II 1Z0-053

This is the ultimate exam within the OCP certification process. Once you pass this exam, you’ll proceed to the ultimate process.

Step 5: Submit a course completion form
Once you pass this exam, you only need to complete a course submission because of the final step within the OCP certification process.

Master Certification

This is the very best Oracle certification you’ll get. With this qualification, you’ll well-suited to figure in senior levels in IT departments handling sensitive database system issues and applications. you’ll need an OCP certification to urge started. then you’ll take a two-day exam then a hands-on course.

Conclusion:
In general, Oracle Certified database administrators have the knowhow to run databases both at the junior and senior levels, counting on the certification level. Some people might argue that there’s little point to being certified because the process involves the memorization of theoretical concepts and taking a multiple-choice test. However, while there’s credence to the very fact that certification does little to catch up on the shortage of technical competence obtained through experience, it does give validity to such claims. As an Oracle Certified database services, potential employers and clients are more easily convinced of your capabilities within the field.

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navin prakash

1609149785

Top 5 New Features of Oracle 18c Database

Any of the developments are fairly minor and incremental. For example, in previous versions of App Express, the end date within a range was removed from the list. In version 5.1, it is including with Oracle 18c, the range end date is included as it is with all other elements of Application Express. Now, version 5.1 also enables end-users to access their scheduling with the arrow keys on the keyboard, an update to the interface that is tiny but usefully intuitive.
In the updated Oracle, other improvements are more important and can have a greater impact on your everyday operations. These five impacts us as has been the most important.

Integration with Microsoft Active Directory
The database will authenticate and authorize users from Microsoft’s Active Directory, beginning with Oracle 18c, without any intermediate directories being needed.
This is a modern, easier way for Active Directory to integrate. Intermediary software such as Oracle Enterprise Public Participation was needed in previous versions to achieve integration.
This new function is called Centrally Managed Users (CMU) and allows you to manage Oracle application access authorization for Active Directory users. When clients are authenticated in this way, Active Directory account policies are implemented by the Oracle database.
Schema Only Accounts
In the past, as a user profile that held certain objects, a schema could be linked more closely. But this also meant that a user could log in and have control over all artifacts in the schema.
With schema accounts only, clients are still unable to login to the schema directly. These kinds of profiles can be developed without a password and, much like a normal user profile, allowances or tasks can be allocated.
Server Draining Ahead of Planned Maintenance
The database will now fail over the sessions to another service or node in a RAC area, Oracle 18c. For example, if a service is transferred to another node, the database labels existing drainage sessions so that the application is not disturbed. Any new sessions will be guided to another usable operating service.
The database uses a collection of rules to assess the end of a session and can be deleted from the server. These rules include custom SQL link checks and access limits where no request is active or operation is finished and the session has one or more recoverable states that can be reconstructed during failover.
Automatic In-Memory
As a manner to improve performance by maintaining columnar-compressed database segments in storage, Oracle In-Memory was implemented in version 12c. In 18c, Oracle promotes in-memory development by introducing Automatic In-memory (AIM). By creating a heat map of the in-memory enabled items, Target operates and creates opportunities for more commonly used applications objects. Only when there isn’t enough space to add another item to the memory store will Goal kick in.
SQL Cancel
In previous versions of Oracle, it was determined to destroy the session that was operating SQL if a database administrator tried to cancel a SQL query. This meant the session had to be removed from the database and a new connection had to be started. In Oracle 18c, the SQL statement itself can now be deleted and scaled back.
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