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Fundamentals of database systems

Fundamentals of database systems

lecha November 25, 2023

Introduction In today's digital era, a database system stands as a hub in managing and organizing vast pools of data. It serves as a structured repository, facilitating efficient data handling, retrieval, and manipulation. Let's go deeper in…

What is Database management systems

What is Database management systems

lecha November 24, 2023

Database Management Systems (DBMS): A Foundation of Modern Data Management A Database Management System (DBMS) stands as a cornerstone in the realm of information technology, serving as a critical software suite meticulously crafted to efficiently h…

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1-Tier Architecture 1NF 2-Tier Architecture 2NF 3-Tier Architecture. 3NF addressing mechanisms Advantages Aggregation alignment with needs. Anomalies Application Programmers Applications across industries - Business Association Associations Atomicity Attribute Relationships B-Trees B+ Trees Backup and Recovery Backup Solutions Basic SQL Queries BCNF Benefits of Using the ER Model in Database Design Binary Datatypes bitmap indexes Boyce-Codd Normal Form Cache Memory Cartesian Product casual users Category of End Users in DBMS Centralized Database Architecture Chained Hashing Character Datatypes Characteristics of the Database Approach Client-Server Database Architecture clustering indexes Collision Resolution Command-Line Interface Components Computer Performance computing applications computing systems Conceptual Layer Concurrency Control Concurrent Access Consistency Constraints cost Data Data Access Data Adaptability Data Analysts Data Atomicity Data Buckets Data Control Data Control Language Data Definition Language data deletion Data Fragmentation Data Handling Methods Data independence Data Integration Data Integrity Data Management Data Management Levels Data Management Strategies Data Manipulation Data Manipulation Language Data Models Data Operations Data Organization data organization. Data Query Language Data Representation Data Retrieval data retrieval efficiency data retrieval speed Data Security data sorting data storage Data Structure Data Structures data transfer Data Types Data Visualization Database Administrators (DBAs) Database Applications Database Architecture Database Components Database Concepts Database Design Database Designers Database Developers: Database Instances. Database Layers Database Management Database Management System (DBMS). Database Management Systems Database Modeling Database Normalization Database Objects Database Operations Database Optimization database optimization. Database Organization database performance database queries Database Query database query language Database Query Languages Database Relationships database retrieval Database Schema Database Software Overview: Oracle Database Structure Database System Database Systems Database Techniques Database Transformation Date and Time Datatypes DBMS DBMS Overview: Functions Decision-Making Deletion Deletion Anomalies Direct Access Storage Direct File Organization disk capacity disk organization disk structures DISTINCT Keyword Distributed Database Architecture DML commands Domain Relational Calculus Double Hashing DQL Durability Dynamic Hashing Dynamic Multilevel Indexing E-commerce E-commerce SQL EER Model efficient data management efficient data retrieval Efficient Database Operations Eliminating Dependencies End User Entity Relationships Entity-Relationship data model ER Diagram ER Model Evolution of Data Management Extendible Hashing External Actors External Layer File Backup File Compression File Creation File Deletion File Encryption File Opening File Operations File Organization file organization. File Reading File System File Traversal file updates File Updating File Writing File-Based System Filtering Data Finance & Data First Normal Form Flash Memory Functional Dependencies Functional Dependency Graphical User Interface Hardware Infrastructure Hash Function Hash Functions Hash Table Hashing Technique hashing techniques HDD Healthcare Analysis Heap Files Hierarchical data model hierarchical indexing How the Components Work Together Human Resources index maintenance index structure Index Structures indexing indexing techniques Inheritance Insertion Insertion Anomalies Interface Internal Layer Intersection Introduction to the Entity-Relationship (ER) Model Isolation JOIN Operation Joins key-value access Keys large datasets LIMIT Clause limitations Linear Probing Logical Data Independence logical formulas Magnetic Disk Magnetic Disks Magnetic Tapes Main Memory Manual Approach Manufacturing Many-to-Many Relationship Mapping Mapping ER-Models Memory Cards Memory Hierarchy Memory Types MongoDB multi-user support MySQL naive or parametric users Network data model New-Generation) Non-Trivial Dependencies NoSQL NoSQL data model. Numeric Datatypes Object-Oriented data model Object-Oriented DBMS Object-Relational data model Object-Relational data model. Object-Relational Mapping data model (ORM) One-to-Many Relationship One-to-One Relationship Open Hashing Operational Efficiency Optical Disc Optical Discs Optical Disks Optimal Data Structure ORDER BY ordered file-based indexes Ordered Files Ordered Indexes Partial Dependencies performance Persistence Physical Data Independence Physical Storage PostgreSQL. Factors influencing selection: scalability primary indexes Procedures and Guidelines Projection Quadratic Probing query language tutorial Query Processing. Querying Random Access RDBMS Real-World Applications Record Formats record organization record sorting Record Storage Relational Algebra Relational Calculus Relational data model Relational Database Schema Relational Databases Relational DBMS Relational Model Relational Schema Relational Tables Relationships Removing Duplicates Retail Management Retrieval Efficiency scalability Scalability: Schema Definition Schemas Science search operations Second Normal Form secondary indexes Security SELECT Query SELECT Statement Selection Sequential Access Storage sequential file organization Set Difference Set Operations Single-User Database Architecture Software sophisticated users SQL SQL commands SQL constraints SQL Data Retrieval SQL Data Types SQL Evolution SQL examples SQL fundamentals SQL in Industries SQL Introduction SQL Operations SQL Server SQL syntax SQL Use Cases SQL Versions SSD Static Hashing Storage Blocks storage components Storage Devices storage efficiency Storage Models Strong Entity structured data storage Structured Query Language System Administrators Table Decomposition Tables Telecommunications The Evolution of Database Management Systems The Significance of Each Component Third Normal Form Transaction Control Language Transitive Dependencies TRC examples TRC syntax TRC variables tree data structure-based indexes tree data structures Tuple Relational Calculus Types (RDBMS Types of Database Languages Types of Entity Ulti-User Database Architecture Understanding the Components of the ER Model Union Union Types unordered file storage Update Update Anomalies Updating USB Drives User Interface user-friendliness Weak Entity WHERE Clause

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