Oracle Database Development
Oracle Database (commonly referred to as Oracle RDBMS or simply as Oracle) is a proprietary multi-model database management system produced and marketed by Oracle Corporation.
It is a database commonly used for running online transaction processing (OLTP), data warehousing (DW) and mixed (OLTP & DW) database workloads. The latest generation, Oracle Database 19c, is available on-prem, on-cloud, or in a hybrid-Cloud environment. 19c may also be deployed on Oracle Engineered Systems (e.g. Exadata) on-prem, on Oracle (public) cloud or (private) cloud at a customer. At Openworld 2017 in San Francisco, Executive Chairman of the Board and CTO, Larry Ellison announced the next database generation, Oracle Autonomous Database.
A 2016 Gartner report claimed to show Oracle holding #1 RDBMS market share worldwide based on the revenue share ahead of its four closest competitors – Microsoft, IBM, SAP, and Teradata.
In the market for relational databases, Oracle Database competes against commercial products such as IBM's DB2 UDB and Microsoft SQL Server. Oracle and IBM tend to battle for the mid-range database market on Unix and Linux platforms, while Microsoft dominates the mid-range database market on Microsoft Windows platforms. However, since they share many of the same customers, Oracle and IBM tend to support each other's products in many middleware and application categories (for example WebSphere, PeopleSoft, and Siebel Systems CRM), and IBM's hardware divisions work closely with Oracle on performance-optimizing server-technologies (for example, Linux on IBM Z). Niche commercial competitors include Teradata (in data warehousing and business intelligence), Software AG's ADABAS, Sybase, and IBM's Informix, among many others.
Increasingly, the Oracle database products compete against such open-source software relational and non-relational database systems like PostgreSQL, MongoDB, Couchbase, Neo4j, and others. Oracle acquired Innobase, supplier of the InnoDB codebase to MySQL, in part to compete better against open source alternatives, and acquired Sun Microsystems, owner of MySQL, in 2010. Database products licensed as open-source are, by the legal terms of the Open Source Definition, free to distribute and free of royalty or other licensing fees.
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Oracle Database Development
F.A.Q about Oracle Database Development
Why is Oracle Such a Popular Relational Database?
In the Oracle Bigdata base, a collection of data is treated as one. The purpose of a database is to store and retrieve organized information. In general, an Oracle server manages a huge amount of data in a multiuser environment so that many users can concurrently access the same data and all this is delivered with high performance. Prevention of unauthorized access and efficient solutions for failure recovery is also provided by the Oracle server.
The most flexible and cost-effective way to manage information and applications is offered by Oracle Database and is the first database designed for enterprise grid computing. Enterprise grid computing enables the creation of a large pool of industry-standard, modular storage, and servers.
This architecture enables every new system to be quickly provisioned from the collection or pool of components. Peak workloads are not required since capacity can easily be added or reallocated from the resource pool as required.
The database has logical 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 Features
Following are the features of Oracle Database:
- Scalability and Performance;
- Database Backup and Recovery;
- High Availability;
- Business Intelligence;
- Content Management;
- Data Integrity and Triggers;
- Information Integration.
Oracle Database Application Development
Oracle Database is a simple, widely understood, unified data model. It is used as a standalone in many applications, but it is also invoked directly from Java (JDBC), Oracle Call Interface (OCI), Oracle C++ Call Interface (OCCI), or XSU (XML SQL Utility). Stored packages, procedures, and triggers can all be written in PL/SQL or in Java.
SQL and PL/SQL are the core of Oracle’s application development stack. Most enterprises run SQL in back-ends and Web applications accessing databases do so by utilizing SQL (wrapped by Java classes as JDBC). Enterprise Application Integration applications generate XML from SQL queries, and content repositories are built on top of SQL tables.
Oracle server covers the following:
- Oracle SQL;
- Application Programming Languages (APIs);