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ΒΑΣΕΙΣ ΔΕΔΟΜΕΝΩΝ - ΤΜΗΜΑ Ι
• Data Bases - Introduction Database-System Applications, Database Languages, Relational Databases, Database Design, Object-Based and Semi-structured, Databases, Data Storage and Querying, Transaction Management, Data Mining and Analysis, Database Architecture, Database Users and Administrators
• Relational Model : Fundamental Relational-Algebra, Operations, Null Values, Modification of the Database.
• SQL: Data Definition, Basic Structure of SQL Queries, Set Operations, Aggregate Functions, Null Values, Nested Subqueries, Complex Queries, Views, Modification of the Database, Joined Relations, Integrity Constraints, Embedded SQL , Recursive Queries.
• Database Design: Constraints, Weak Entity Sets, Extended E-R Features, Reduction to Relational Schemas, Unified Modeling Language elements
• Indexing and Hashing: Ordered Indices, B+-Tree Index Files, B-Tree Index Files, Multiple-Key Access, Static Hashing, Dynamic Hashing, Index Definition in SQL.
• Query Processing & Optimization Measures of Query Cost, Selection Operation, Sorting Join Operation, Other Operations, Transformation of Relational Expressions, Estimating Statistics of Expression Results, Choice of Evaluation Plans
• Advanced web data base interfaces: Architectural design, PHP, MYSQL, Apache, Paging, Form Validation, user authentication, content management systems
• Advanced data base topics - Data Warehousing - OLAP, Data Mining (KDD process, basic algorithms)
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