Oracle Database enterprise relational database PL/SQL ACID transactions

Oracle Database - Enterprise Relational Database

What is Oracle Database?

Oracle Database is a relational database management system created in 1979 by Oracle Corporation. It features high reliability, advanced security features and enterprise scalability.

Year created
1979
Company
Oracle Corporation
Type
RDBMS, SQL
License
Commercial
48%
Database market share
430K+
Companies use Oracle
40+
Years in market
oracle-operations.sql
-- Oracle Database PL/SQL Example
DECLARE
v_emp_id employees.employee_id%TYPE;
v_salary employees.salary%TYPE;
BEGIN
-- Query employee data
SELECT employee_id, salary
INTO v_emp_id, v_salary
FROM employees
WHERE last_name = 'Smith';
-- Update salary with 10% raise
UPDATE employees
SET salary = v_salary * 1.10
WHERE employee_id = v_emp_id;
COMMIT;
DBMS_OUTPUT.PUT_LINE('Salary updated for employee: ' || v_emp_id);
END;
/
Output:
✓ Salary updated for employee: 12345
Query time: 0.8ms - ultra fast!
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Advantages Oracle Database - reliability, performance

Key Oracle Database advantages - ACID compliance, advanced security, high availability. Business and technical benefits for enterprise.

Disadvantages Oracle Database - costs, complexity

Main Oracle Database disadvantages - high licensing costs, administration complexity, vendor lock-in. Realistic view of limitations.

Use Cases Oracle Database - enterprise, finance

Practical Oracle Database applications - financial systems, ERP, CRM, data warehousing. Enterprise success stories.

Enterprise applications

ERP systems, CRM, SCM, financial and accounting applications, human resource management

tech.useCases.frameworks
Oracle EBSSAPPeopleSoft
tech.useCases.realExamples

SAP on Oracle, Oracle EBS, PeopleSoft, JD Edwards, corporate banking systems

Financial systems

Banking, insurance, trading, risk management, compliance and audit

tech.useCases.frameworks
Oracle FinancialsFLEXCUBETemenos
tech.useCases.realExamples

Core banking systems, FLEXCUBE, Temenos, payment systems, stock exchanges

Data warehousing

Big Data analytics, business intelligence, data mining, corporate reporting

tech.useCases.frameworks
Oracle ExadataOBIEEOracle Analytics Cloud
tech.useCases.realExamples

Oracle Exadata, Oracle Analytics Cloud, OBIEE, BI systems for banks, telco analytics

High availability systems

Mission-critical applications, 24/7 systems, disaster recovery, zero-downtime maintenance

tech.useCases.frameworks
Oracle RACData GuardGoldenGate
tech.useCases.realExamples

Telecommunications systems, air traffic control, medical systems, power plants

FAQ: Oracle Database – Frequently Asked Questions

Complete answers about Oracle Database - from SQL to PL/SQL, performance, security and business benefits

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