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Showing posts with the label Table DecompositionShow all

Boyce-Codd Normal Form

Boyce-Codd Normal Form

lecha November 16, 2023

Consider a table named "Course_Information" that stores details about courses, including Course ID, Course Name, Professor ID, and Professor Name. Original Table: Transformation into BCNF: Identifying Non-Trivial Dependencies: Professor Na…

Second Normal Form

Second Normal Form

lecha November 16, 2023

Second Normal Form (2NF) is an important stage in database normalization, aiming to enhance data integrity by addressing partial dependencies within a table. It evolves from the principles of First Normal Form (1NF) by ensuring that every non-key a…

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Dynamic multilevel indexes with B-Tree and B+Tree

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1-Tier Architecture 1NF 2-Tier Architecture 2NF 3-Tier Architecture. 3NF addressing mechanisms Advantages Aggregation alignment with needs. 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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. 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