Oracle Database course in Rawalpindi, islamabad, Pakistan. 0321-4278510

ORACLE Database Course 0321-4278510

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Students from different cities can apply for Admission

Rawalpindi, Islamabad, Lahore, Karachi, Gilgit, Skardu, Ghangche, taxila, Shigar, Astore, Diamer, Ghizer, Kharmang, Gultari, Rondo, Hunza Nagar, Gupi, Azad Jammu and Kashmir, Muzaffarabad, Mirpur, Bhimber, Kotli, Rawlakot, Bagh, Bahawalpur, Bhakkar, Chakwal, Chiniot, Dera Ghazi Khan, Faisalabad, Gujranwala, Gujrat, Hafizabad, Jhang, Jhelum, Kasur, Khanewal, Khushab, Layyah, Lodharan, Mandi-Bahuddin, Mianwali, Multan, Muzaffargarh, Nankana Sahib, Narowal, Okara, Pakpattan, Rahim Yar Khan, Rajanpur, Sahiwal, Sargodha, Sheikhupura, Sialkot, Toba tek Singh, Vehari, Attock, Taxila, Wah Cantt, Rawalpindi, Balochistan, Khyber-Pakhtunkhwa, Punjab, Sindh, Gilgit Baltistan, Turbat, Sibi, Chaman, Lasbela, Zhob, Gwadar, Nasiraba, Jaffarabad, Hub, Dera Murad Jamali, Dera Allah Yar, Khyber-Pakhtunkhwa, Peshawar, Mardan, Abbottabad, Mingor, Kohat, Bannu, Swabi, Dera Ismail Khan, Charsadda, Nowshera, Mansehra, Hyderabad, Sukkur, Larkana, Nawabshah, Nanak wara, Mirpur Khas, Jacobabad, Shikarpur, Khairpur, Pakistan.

Oracle Database

Oracle Database (commonly referred to as Oracle RDBMS or simply as Oracle) is an object-relational database management system produced and marketed byOracle Corporation. An Oracle database system—identified by an alphanumeric system identifier or SID—comprises at least one instance of the application, along with data storage. An instance—identified persistently by an instantiation number (or activation id: SYS.V_$DATABASE.ACTIVATION#)—comprises a set of operating-system processes and memory-structures that interact with the storage. Typical processes include PMON (the process monitor) and SMON (the system monitor). Oracle documentation can refer to an active database instance as a "shared memory realm". Users of Oracle databases refer to the server-side memory-structure as the SGA (System Global Area). The SGA typically holds cache information such as data-buffers, SQL commands, and user information. In addition to storage, the database consists of online redo logs (or logs), which hold transactional history. Processes can in turn archive the online redo logs into archive logs (offline redo logs), which provide the basis for data recovery and for the physical-standby forms of data replication using Oracle Data Guard. The Oracle RAC (Real Application Clusters) option uses multiple instances attached to a central storage array. In version 10g, grid computing introduced shared resources where an instance can use CPU resources from another node in the grid. The advantage of Oracle RAC is that the resources on both nodes are used by the database, and each node uses its own memory and CPU. Information is shared between nodes through the interconnect—the virtual private network. The Oracle DBMS can store and execute stored procedures and functions within itself. PL/SQL (Oracle Corporation's proprietary procedural extension to SQL), or the object-oriented language Java can invoke such code objects and/or provide the programming structures for writing them.

Storage

The Oracle RDBMS stores data logically in the form of tablespaces and physically in the form of data files ("datafiles"). Tablespaces can contain various types of memory segments, such as Data Segments, Index Segments, etc. Segments in turn comprise one or more extents. Extents comprise groups of contiguous data blocks. Data blocks form the basic units of data storage. A DBA can impose maximum quotas on storage per user within each tablespace.

Partitioning

The partitioning feature was introduced in Oracle 8. This allows the partitioning of tables based on different set of keys. Specific partitions can then be added or dropped to help manage large data sets.

Monitoring

Oracle database management tracks its computer data storage with the help of information stored in the system tablespace. The system tablespace contains the data dictionary, indexes and clusters. A data dictionary consists of a special collection of tables that contains information about all user-objects in the database. Since version 8i, the Oracle RDBMS also supports "locally managed" tablespaces that store space management information in bitmaps in their own headers rather than in the system tablespace (as happens with the default "dictionary-managed" tablespaces). Version 10g and later introduced the sysaux tablespace, which contains some of the tables formerly stored in the system tablespace, along with objects for other tools such as OEM, which previously required its own tablespace.

Oracle Database Architecture

An Oracle database is a collection of data treated as a unit. The purpose of a database is to store and retrieve related information. A database server is the key to solving the problems of information management. In general, a server reliably manages a large amount of data in a multiuser environment so that many users can concurrently access the same data. All this is accomplished while delivering high performance. A database server also prevents unauthorized access and provides efficient solutions for failure recovery. Oracle Database is the first database designed for enterprise grid computing, the most flexible and cost effective way to manage information and applications. Enterprise grid computing creates large pools of industry-standard, modular storage and servers. With this architecture, each new system can be rapidly provisioned from the pool of components. There is no need for peak workloads, because capacity can be easily added or reallocated from the resource pools as needed. The database has logical structures and physical structures. Because the physical and logical structures are separate, the physical storage of data can be managed without affecting the access to logical storage structures.

ORACLE Database training Course In Rawalpindi, Islamabad, Pakistan. 0321-4278510

Oracle Database Course Content:

SQL/PLSQL

  • Build Application Forms1
  • Build Application Forms2
  • Reports
  • Class

    5 Days a Weeks Class Timing

    Evening & Morning Shift


    ORACLE Database training Course in Rawalpindi, Pakistan.

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