Vi ste ovdje
Overview/Description
As a database administrator it is very important to understand how to restore and recover your database in the event of a loss of a file due to media, hardware, or user error. The restoration process involves moving a backup into place to be used by the database when a file is damaged. The recovery process involves applying redo to bring the file forward in time to before the failure or up to the failure point. This course discusses the type of failures that can occur and how to recover from them. It also discusses how to perform user-managed backup and recoveries. This...
Overview/Description
Oracle Database 11g Release 2 offers improvements and new features to provide DBAs a better way to monitor SQL commands in real-time and to allow the database to automatically manage its own memory and gather optimizer statistics. These features enable the DBA to ensure the optimal memory sizes are being used for the database using Automatic Memory Management, and that SQL statements are running properly by monitoring them in real-time using Enterprise Manager. It also offers a new feature to conceptually extend the buffer cache by using DB Smart Flash. This course...
Overview/Description
An Oracle database is divided into logical storage units called tablespaces. Oracle also provides Oracle-Managed Files (OMF), which eliminate the need for the DBA to directly manage the operating system files in the Oracle database. To access the database, a user must specify a valid database user account and successfully authenticate as required by that user account. What the user can execute once they are logged in is controlled by privileges granted to them, which can be system or object. Privileges can be better controlled by using roles and profiles, which control...
Overview/Description
Oracle Database 11g Release 2 offers Automatic Storage Management (ASM), which eliminates the need for many tasks that are required on a non-ASM storage environment by the DBA. Some of these tasks include I/O performance tuning, file system, cluster file system, and raw device management, and data file movements and reorganizations. When ASM is used, an ASM instance is also used. The ASM instance allocates memory and uses the SGA differently than in a database instance. This course describes the ASM instance and how it works, and demonstrates how to manage it with various...
Overview/Description
RMAN uses a recovery catalog to store metadata about Oracle databases, and allows stored scripts to be used to run sequences of RMAN commands stored in the catalog. When administering an Oracle Database, it is important to be familiar with what a backup is, how the process of creating a backup is completed, and the various types of backups available. This knowledge allows you to make an informed decision on the best way to maintain the integrity of your data and the availability of your database. This course discusses how to create and manage the recovery catalog. It also...
Overview/Description
Oracle Database 11g Release 2 is designed for data center environments that are rapidly evolving and changing to keep up with business demands, enabling DBAs to manage change effectively and efficiently. Oracle Database 11g Release 2 offers significant advances in the areas of automatic diagnostics, supportability, and change management. It can be expensive for organizations to evaluate and implement changes to their data center infrastructure, and Oracle addresses this issue with a collection of solutions under the umbrella of Change Management. These consist of SQL...
Overview/Description
Reconstructing the contents of all or part of a database from a backup typically involves two phases. The first phase is the retrieval of a copy of the data file from the backups. The second involves reapplying changes to the file that occurred since the backup, using archived and online redo logs. To effectively administer an Oracle Database 11g database, recovery should be performed when critical or non-critical files are lost. Once you configure RMAN to perform recovery operations, it is important to have measures in place to monitor RMAN jobs. This course explains how...
Overview/Description
Oracle Database implements tracing by generating a trace file for each server process when you enable the tracing mechanism. This course explores configuring the SQL Trace facility to collect session statistics, using the TRCSESS utility to consolidate SQL trace files, formatting trace files using the tkprof utility, and interpreting the output of the tkprof command. Tuning statements automatically eases the entire SQL tuning process and replaces manual SQL tuning. Statement profiling, and using the SQL Tuning Advisor, the SQL Access Advisor, and Automatic SQL Tuning are...
Overview/Description
The Oracle Database server consists of an Oracle Database and one or more Oracle Database instances. SQL (Structured Query Language) is the language with which all programs and users access an Oracle Database. Monitoring the performance of and tuning database components, as well as the SQL statements used to access and manipulate the database, helps to ensure the Oracle Database server runs efficiently and as expected. This course explores the major architectural components of the Oracle Database server, memory structures, background processes, and physical and logical...
Overview/Description
A basic security requirement is that you must know your users. You must identify them before you can determine their privileges and access rights, so that you can audit their actions on the data. This course covers creating and auditing database authenticated users and operating-system-authenticated users. It explores authenticating users with passwords or the operating system, and protecting passwords and database link passwords. In addition, this course describes strong authentication that uses certificates, Kerberos, and remote authentication dial-in service (RADIUS),...
Koraci do učenja
Prijavite se, a ako nemate korisničko ime, registrirajte se.
Pronađite edukacijske programe u Katalogu i Certifikaciji, ili koristite polje za pretragu.
Upisani programi dostupni su u meniju Korisnik, Moji tečajevi.
Trebate pomoć?
- Česta pitanja - FAQ
- telefon: +385 1 6558 440
- email: support@cognita.hr
- Kontakt forma
