Oracle concepts and architecture interview questions and answers. Oracle soa introduction for beginners basic concepts. Oracle database architecture is a combination of instance and database. The main use of the ssis tool is to extract data into the servers memory, transform it, and write it to another destination.
It is intended to give you a partial view of what is available to you to use within the assignments. An oracle database includes several different types of files. Base tables are dictionary information of the database. If you continue browsing the site, you agree to the use of cookies on this website. They will be created at the time of database creation using sql. When the oracle instance is running, it can attach itself to a database. Oracle concepts and architecture interview questions and. Parse information includes the set of database operations that the sql execution mechanism will perform in order to obtain data requested by the user processes. An oracle database consists of a database and at least one instance. A technical overview of the oracle exadata database. Net for oracle database 11g expert oracle database architecture. Oracle database 9i, 10g, and 11g programming techniques.
The enterprise data architecture provides organizations the flexibility to leverage oracle databases. Parse information includes the set of database operations that the sql execution mechanism will perform in order to obtain data requested by the user. Introduction to databases and the relational model, database objects, responsibilities of a database administrator, the oracle product family. That tag line refers to the feature real application clusters rac. The server runs oracle database software and handles the functions required for concurrent, shared data access. Ian abramson, michael abbey, michelle malcher, michael corey in this twopart article, you take a look at the oracle schema and storage infrastructure because these are a large part of what you, as an oracle dba, will be required to manage. Oracle database is commonly referred to as oracle rdbms or simply oracle. Every oracle database has a set of two or more online redo log files. Oracle concepts and architecture interview questions and answers includes, physical database, structure of oracle database, components of logical database, tablespace, system tablespace, relationship among database, schema, schema. This video explains about in detail about the oracle architecture. A server is a collection of database units and it provides comprehensive integrated approach to info management. Oldest release of oracle erp which is character, thin client based.
From a system point of view, a group of independent servers defines a. The listener brokers client requests, handing off the requests to the oracle database server. If control flow is the brain, data flow is the heart of ssis. Pdf study guide and sql concepts by using oracle 12c. Oracle database architecture introduction to oracle database 15. Information in this manual applies to the oracle database server running on. In this post well go through the oracle 12c architecture. An instance, or database instance, is the combination of memory and processes that are a part of a running installation and a database is a set of files that store data. It is collection of standards based software products that spans a range of tools and services. Learn oracle dba basictoadvanced topics to store, manage, and retrieve information and to deliver high. Basics of oracle 12cs real application clusters dummies. Following is a simple diagram showing the sql architecture.
Oracle database manages memory based on the settings of memoryrelated initialization parameters. The oracle net listener is an application positioned on top of the oracle net foundation layer. Part ii describes the basic structural architecture of the oracle database, including. Module 1 oracle architecture primary architecture components the figure shown above details the oracle architecture. If you are willing to compile and execute sql programs with oracle 11g rdbms but you dont have a setup for the same, do not worry. Oracle 12c architecture oracle database internal mechanism. Being an oracle dba or oracle apps dba you must be knowing the basic of the database architecture.
The memory structure itself consists of system global area sga, program global area pga, and an optional area software area code. Oracle cost management helps to maintain the costs of items in your inventory and the immediate modules that it interacts with are oracle inventory, oracle bills of material, order management. Oracle components the database the instance oracledata. Oraclecloudinfrastructureresources,andtohelpensurecompliancewithstandardsor regulations. Oracle database architecture part 1 oracle tutorial for.
These online redo log files, together with archived copies of redo log files, are collectively known as the redo log for the database. Introduction to databases and the relational model, database objects, responsibilities of a database. Distinct tiers of the architecture starting with the database, moving to the application server and process scheduler server, to the web server, then out to the browser the browser sends requests to the web server, which transmits the request to the application server. It is known to be architecture for building business applications. Instance is a combination of memory structures and background processes which helps in reading and writing the data tofrom the database. Automatic memory management you specify the target size for instance memory. Explore the usage of the shared pool in the oracle database architecture. The shared sql library cache is designed to store parse information for sql statements executing against the database. Another core component of ssis is the notion of a package. After database work, or in the course of a manual startup, the dba will want to allow the users. Oracle defines the term instance as the memory structure and the background processes used to access data from a database.
Instance is a combination of memory structures and background processes which helps. Part ii describes the basic structural architecture of the oracle database, including physical and logical storage structures. In a clientserver architecture, the client application initiates a request for an operation to be performed on the database server. This part describes the basic structural architecture of the oracle database instance. The initial request from the end user is sent to the presentation server. This parameter is used by brarchive to identify the volumedirectory to be used for the archive of the offline. Home interview question and answer oracle oracle concepts and architecture. Download this course intituled java programming and improve your programming skills, help you understanding java watever you level this course is adapted to you as well as all java pdf tutorials presented in this site click download and begin learning java for free. Data guard has options for multiple standby sites as well as an activeactive configuration. Each manual in this group is designed to be read in two days.
The list contains questions useful for basic, freshers and experienced oracle professionals. This documentation will lead you through the main features and tools of oracle. Defining a cloud reference architecture is an essential step towards achieving higher levels of cloud maturity. The database receives an initial connection from a client application through the listener. Its an option to the oracle database that provides high availability ha and scalability to the oracle database without requiring any application changes. Bigdataprovidesenterprisegradehadoopasaservice,withendtoendsecurity,high.
Oracle database architecture introduction to oracle database 111. Oracle database 11g architecture ampersand academy. Oracle white paper a technical overview of the oracle exadata database machine and exadata storage server 2 introduction the oracle exadata database machine is an easy to deploy solution for hosting the oracle database that delivers the highest levels of database performance available. Our oracle tutorial is designed for beginners and professionals. Here is a list of 60 interview questions about oracle database with their answers. The presentation server converts this request in logical sql and forwards it to bi server component. In addition to this manual, the basic group includes. Data guard is oracle 12cs true disaster protection technology. In it, you have a minimum of two databases, primary and standby. Here i have tried to explain the basic of the oracle database architecture in simple words. Oracle dba tutorial learn oracle dba from experts intellipaat. There are three major structures in oracle database server architecture.
There are two basic memory structures on the oracle instance. The memory structures and background processes contitute an instance. Storage size in gigabytes g, megabytes m or kilobytes k for the tapes that will be used for backups and for archiving redo log files. Rac architecture concepts in oracle db components tutorial. Get free oracle dba tutorial guide for beginners in pdf, ppt, video, image, doc, and ebook formats. By activeactive, it means bothall sites are up, running, and accessible.
Exploring the oracle database architecture slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Oracle white paper oracle application development framework overview 1 introduction java ee is a standard, robust, scalable, and secure platform that forms. The basic options for memory management are as follows. It offers complete support for deployment, development and applications management. Oracle database 9i, 10g, and 11g programming techniques and solutions, second edition dear reader, expert oracle database architecture, 2nd edition is a book. If youve visited oracle s websites in the last 12 years, youve seen the marketing byline. Chapter 2, data blocks, extents, and segments chapter 3, tablespaces, datafiles, and control files chapter 4, transaction management. A database administrator dba is responsible for the overall operation of oracle. Obiee architecture involves various bi system components which are required to process the end users request. Of course, a lot of elements are involved, but rac has the spotlight. The following picture illustrates the oracle database server architecture. Explain briefly about oracle database architecture. Architecture oracle sql recipes beginning oracle plsql beginning oracle sql troubleshooting oracle performance pro odp.