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Distributed Database Management Systems: Lecture 7
Distributed Database Management Systems: Lecture 7. The main topics covered in this chapter include: relational data languages; relational calculus based, non-procedural, user only mentions the relationships among the data; cartesian product;...
4/8/2023 5:41:24 PM +00:00
Distributed Database Management Systems: Lecture 6
Distributed Database Management Systems: Lecture 6. The main topics covered in this chapter include: first three normal forms; boyce-code normal form; fourth normal form; P-J dependency; project-join dependency; integrity rules;...
4/8/2023 5:41:18 PM +00:00
Distributed Database Management Systems: Lecture 5
Distributed Database Management Systems: Lecture 5. The main topics covered in this chapter include: data model; legacy data models; a set of tools/constructs used to model a database; record/semantic; relational data model; primary key;...
4/8/2023 5:41:12 PM +00:00
Distributed Database Management Systems: Lecture 4
Distributed Database Management Systems: Lecture 4. The main topics covered in this chapter include: fragmentation transparency; responsibility of transparency; performance improvement; through data localization; inter-query and intra-query parallelism; database design; query processing; concurrency control;...
4/8/2023 5:41:05 PM +00:00
Distributed Database Management Systems: Lecture 3
Distributed Database Management Systems: Lecture 3. The main topics covered in this chapter include: local units want control over data; consolidate data for integrated decisions; reduce telecommunication costs; reduce the risk of telecommunication failures;...
4/8/2023 5:40:54 PM +00:00
Distributed Database Management Systems: Lecture 2
Distributed Database Management Systems: Lecture 2. The main topics covered in this chapter include: introduction to distributed databases; major characteristics; data at multiple sites; DM at each site ind; local requirements; global perspective;...
4/8/2023 5:40:48 PM +00:00
Distributed Database Management Systems: Lecture 1
Distributed Database Management Systems: Lecture 1. The main topics covered in this chapter include: introduction to database and distributed systems in general; architectures and design issues of DDBS; technological treatment; theoretical aspects of the topic;...
4/8/2023 5:40:40 PM +00:00
Đề thi học kì 2 môn Quản trị cơ sở dữ liệu với Access 1 năm 2022 - Trường Cao đẳng nghề Điện Biên
Dưới đây là Đề thi học kì 2 môn Quản trị cơ sở dữ liệu với Access 1 năm 2022 - Trường Cao đẳng nghề Điện Biên dành cho các bạn sinh viên khối nghề Công nghệ thông tin đang chuẩn bị ôn thi kết thúc học phần, việc tham khảo đề thi này giúp các bạn củng cố kiến thức, luyện tập thực hành Access một cách hiệu quả. Chúc các bạn ôn tập kiểm tra đạt kết quả cao!
4/8/2023 5:12:54 PM +00:00
Phát hiện tự động tin giả: Thành tựu và thách thức
Trong bài viết này, nhóm tác giả trình bày một cách tổng quan các vấn đề liên quan đến khái niệm, phân loại, cách xác định thủ công và xác định tự động các tin giả. Đặc biệt, nhóm tác giả đã trình bày hai kỹ thuật được ứng dụng rộng rãi hiện nay đó là kỹ thuật học máy và kỹ thuật học sâu.
4/8/2023 4:38:32 PM +00:00
Nhân tố tác động đến mức độ chấp nhận của khách hàng với ứng dụng giúp việc gia đình
Nghiên cứu này được thực hiện nhằm xem xét các yếu tố ảnh hưởng đến sự chấp nhận của khách hàng đối với các ứng dụng giúp việc gia đình. Nghiên cứu được thực hiện qua hai giai đoạn với nghiên cứu sơ bộ bằng phương pháp nghiên cứu định tính (N=10) và nghiên cứu chính thức bằng phương pháp định lượng với dữ liệu thu thập từ 400 khách hàng hiện đang sinh sống, làm việc tại thành phố Đà Nẵng.
4/8/2023 4:36:36 PM +00:00
Phân tích hiệu năng của các thiết kế SRAM trên công nghệ TSMC 90nm CMOS
Nghiên cứu đã phân tích và so sánh các lợi điểm có được của thiết kế 8 transistor (8T) so với 6 transistor (6T) được dùng cho các ô nhớ SRAM. Thiết kế 8T với diện tích thiết kế nhỏ trong khi có thể cải thiện đáng kể độ ổn định.
4/8/2023 4:34:51 PM +00:00
Lecture Database Systems - Chapter 11: Emerging research directions in DBs/ISs (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 11: Emerging research directions in DBs/ISs has present the contents mobile databases; multimedia databases; geographic information systems; bioinformatics; XML; data mining; data warehousing; introduction to ASIS lab;...
4/8/2023 4:12:32 PM +00:00
Lecture Database Systems - Chapter 10: Database security: An introduction (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 10: Database security: An introduction has present the contents introduction to database security issues; discretionary access control; mandatory access control; RBAC (Role-Based Access Control); encryption and PKI (Public Key Infrastructure);...
4/8/2023 4:12:21 PM +00:00
Lecture Database Systems - Chapter 9: Practical database design and tuning (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 9: Practical database design and tuning has present the contents practical database design and tuning; analyzing the database queries and transactions; physical database design in relational databases; an overview of database tuning in relational systems;...
4/8/2023 4:12:15 PM +00:00
Lecture Database Systems - Chapter 8: Data storage, indexing structures for files (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 8: Data storage, indexing structures for files has present the contents data storage like disk storage devices, files of records, operations on files, unordered files, ordered files; indexing structures for files like types of single-level ordered indexes, multilevel indexes;...
4/8/2023 4:12:08 PM +00:00
Lecture Database Systems - Chapter 6-7: SQL (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 6-7: SQL (Structured Query Language) has present the contents the company database; SQL developments: an overview; defining the company database schema; ambiguous attribute names; unspecified WHERE-clause; substring pattern matching and arithmetic operators;...
4/8/2023 4:11:57 PM +00:00
Lecture Database Systems - Chapter 5: Relational algebra (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 5: Relational algebra has present the contents relational algebra; unary relational operations; relational algebra operations from set theory; binary relational operations; additional relational operations; brief introduction to relational calculus;...
4/8/2023 4:11:48 PM +00:00
Lecture Database Systems - Chapter 4: Relational data model and ER-/EER-to-Relational mapping (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 4: Relational data model and ER-/EER-to-Relational mapping has present the contents relational data model; relational integrity constraints; update operations on relations; alternative terminology for relational model; relational database schema; main phases of database design;...
4/8/2023 4:11:36 PM +00:00
Lecture Database Systems - Chapter 3: EER Model (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 3: EER Model has present the contents limitations of basic concepts of the ER model; enhanced-ER (EER) model concepts; subclasses and superclasses; specialization and generalization; specialization/generalization hierarchies, lattices and shared subclasses; database design modeling tools;...
4/8/2023 4:11:29 PM +00:00
Lecture Database Systems - Chapter 2: Entity-relationship model (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 2: Entity-relationship model has present the contents overview of database design process, example company database, ER model concepts, ER diagram, alternative diagrammatic notations, problems with ER models,...
4/8/2023 4:11:22 PM +00:00
Lecture Database Systems - Chapter 1: Database System Concepts and Architecture (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 1: Database System Concepts and Architecture has present the contents file-based approach, database approach, three-schema architecture and data independence, database languages, data models, database schema and database state, data management systems framework,...
4/8/2023 4:11:16 PM +00:00
Lecture Database Systems - Chapter 0: Welcome (Nguyen Thanh Tung)
Lecture Database Systems - Chapter 0: Welcome has present the contents of the 14-week program of Database System; accompanied by reference materials for the course and the form of the final exam;...
4/8/2023 4:11:09 PM +00:00
Lecture Database Systems - Chapter 9: Database security: An introduction (Trương Quỳnh Chi)
Lecture Database Systems - Chapter 9: Database security: An introduction has present the content: introduction to database security issues; discretionary access control; mandatory access control; RBAC (role-based access control); encryption & PKI (public key infrastructure);...
4/8/2023 4:11:02 PM +00:00
Lecture Database Systems - Chapter 8: Data storage, Indexing structures for files (Trương Quỳnh Chi)
Lecture Database Systems - Chapter 8: Data storage, Indexing structures for Files has present the content: overview of database design process; data storage: disk storage devices, files of records, operations on files, unordered files; indexing structures for files: types of single-level ordered indexes, multilevel indexes;...
4/8/2023 4:10:54 PM +00:00
Lecture Database Systems - Chapter 7: Functional dependencies & Normalization for relational DBs (Trương Quỳnh Chi)
Lecture Database Systems - Chapter 7: Functional dependencies & Normalization for relational DBs has present the content: overview of database design process; introduction; functional dependencies; normalization; direct dependency;...
4/8/2023 4:10:43 PM +00:00
Lecture Database Systems - Chapter 6: Structured query language (Trương Quỳnh Chi)
Lecture Database Systems - Chapter 6: Structured query language has present the content: introduction of structured query language; DDL: create, drop, alter; DML: select, insert, update, delete; DCL: commit, rollback, grant, revoke;...
4/8/2023 4:10:34 PM +00:00
Lecture Database Systems - Chapter 5: Relational algebra (Trương Quỳnh Chi)
Lecture Database Systems - Chapter 5: Relational algebra has present the content: unary relational operations; relational algebra operations from set theory; binary relational operations; additional relational operations; brief introduction to relational calculus;...
4/8/2023 4:10:23 PM +00:00
Lecture Database Systems - Chapter 4: Relational data model and ER/EER-to-Relational mapping (Trương Quỳnh Chi)
Lecture Database Systems - Chapter 4: Relational data model and ER/EER-to-Relational mapping has present the content: relational data model; relational integrity constraints; main phases of database design; ER-/EER-to-Relational mapping;...
4/8/2023 4:10:15 PM +00:00
Lecture Database Systems - Chapter 3: Enhanced entity-relationship model (Trương Quỳnh Chi)
Lecture Database Systems - Chapter 3: Enhanced entity-relationship model has present the content: introduction to Enhanced-ER model; subclasses, superclasses, and inheritance; specialization and generalization; constraints and characteristics of specialization and generalization hierarchies; categories;...
4/8/2023 4:10:05 PM +00:00
Lecture Database Systems - Chapter 2: Entity-Relationship model (Trương Quỳnh Chi)
Lecture Database Systems - Chapter 2: Entity-Relationship model has present the content: overview of database design process; a sample database application; ER model concepts; ER diagram and naming conventions; alternative diagrammatic notations; problems with ER models;...
4/8/2023 4:09:55 PM +00:00