... Deadlock, Locking schemes, Time-stamp ordering, Multi-version, Optimistic techniques; DB security; Distributed databases;
Distributed DBMS, Data fragmentation and replication, Distributed transactions management. Object-Oriented databases.
Introducing to new emerging DB technologies and applications ...
CMP 206: Principles of Database Management System
... UNIT3: Normalization in Design of Databases: Functional dependencies, normal forms,
first, second and third functional personal normal forms. BCNF, multi-valued
dependencies fourth normal forms, join dependencies and fifth normal forms.
Inclusion dependencies, loss less join decompositions, normaliz ...
Database Management System Module Title: CAP 364 Module ID
... Deadlock, Locking schemes, Time-stamp ordering, Multi-version, Optimistic
techniques; DB security; Distributed databases; Distributed DBMS, Data
fragmentation and replication, Distributed transactions management. Object-Oriented
databases. Introducing to new emerging DB technologies and applications ...
Slides 01 - University of California, Irvine
... transactions, schedules, conflict, view, and final-state serializability correctness beyond serializability
-2PL, TO, validation protocols, SGT, Performance modeling
Deadlock detection, avoidance, lock conversion, update locking, etc.
Database System Concepts, --Silberschatz Korth, Sudarshan, -
... database growth in the hands of database administrators (DBAs) and other specialists. Databases
have been in use since the earliest days of electronic computing. Unlike New systems which can be
utilized to widely unlike databases and needs, the vast maturity of more previous systems were
tightly rel ...
... UNIT-I : Introductory Concepts of DBMS: Introduction and application of DBMS, Data Independence, Database
System Architecture – levels, Mapping, Database users and DBA, Entity – Relationship model, constraints, keys,
Concurrency Control - High Point University
... integrity rules, but no other transaction can see it
and it eliminated before ending
• Isolation- Appear that transaction is running by
itself (invisible to all other)
1 What is ...? 2 Features of Modern Database and TP Systems 3
... What is a transaction? A program that changes the state of the database; reflects/records an event happening
in the real-world that changes the state of the enterprise.
What is a transaction processing (TP) system? A TP monitor is a system that manages transactions and
control their access to a DBMS ...
Object Composition and Reuse in a Distributed Multimedia
... Object Composition and Reuse in a Distributed Multimedia Database
This paper proposes a distributed multimedia database. We use object-oriented
methodology with the support of multimedia networking technologies in the design and
implementation of our system. The database supports an easy to reuse me ...
MTH101: Calculus I
... Information Systems Engineering (Bilişim Sistemleri Mühendisliği) Program
Course Information Document
COURSE: B Sc (SYSTEM INFRASTRUCTURE - V
... COURSE: B Sc (SYSTEM INFRASTRUCTURE MANAGEMENT)
SUBJECT CODE: BSSI- 44
SUBJECT: DATABASE INFORMATION SYSTEM
UNIT 1: INTRODUCTION OF DATABASE SYSTEMS
Basics of database systems
Traditional file oriented approach
Motivation for database approach
The evolution of database systems
University of Linköping, Department of Computer Science
... players are swedish or non-swedish. The database should store information only about those
matches where at least one of the players is swedish. The information to store is when the
match took place, which two players took part in it, and all the chess moves in the match as
well as all the pieces ca ...
CSE 510 Database Management System Implementation
... in the area of database systems. Advanced concepts, such as XML and multimedia databases, are also
• Introduction to database systems and the architectural foundations (0.75 weeks)
• Buffer management (0.75 weeks)
• Index structures (0.75 week)
• Query execution (0.75 w ...
syllabus - Sharada Vikas Trust
... The Entity-Relationship Data Model, Introduction of entity Relationship model, Elements
of the E/R Model, Requirement, Relationship, Entity-Relationship Diagrams, Multiplicity
of Binary E/R Relationships, Design Principles, Avoiding Redundancy, Simplicity
Counts, Extended ER Models
Link to Slides
... This is nice because all the sites are well-understood by all,
and optimizations useful for one site can be exported to
others. It is easier to treat such a network as a single central
... Banking: all transactions
Airlines: reservations, schedules
Universities: registration, grades
Sales: customers, products, purchases
Manufacturing: production, inventory, orders, supply
• Human resources: employee records, salaries, tax
... The database field has experienced a rapid and incessant growth since the
development of relational databases. The progress in database systems and
applications has produced a diverse landscape of specialized technology areas that
have often become the exclusive domain of research specialists. This ...
... To preserve integrity of data, the database system must ensure:
Atomicity: Either all operations of the transaction are
properly reflected in the database or none are.
Consistency: Execution of a transaction in isolation
preserves the consistency of the database.
Isolation: Each transaction mu ...
poster_db4o2d - HSR-Wiki
... This project aims to extend a pure object database with 2D geospatial types.
The extension consists of the Java Topology Suite (JTS).
db4o is an open source database written in Java and .NET. It is well suited for single
user system scenarios and embedded systems running on mobile or desktop
Forward-Engineering ERD and Data Using MySQL Workbench
... 5. Next: Review the SQL Script to be Executed
6. Next: Connect to DMBS: select previously created stored connection
(Or, make connection: Blackboard > NOTES > Useful Links > DATABASE
RESOURCES > FSU CCI MySQL Workbench Login Procedures)
7. Execute (table structures with data)
Note: If errors, correc ...
... • The precedence graph test for conflict serializability cannot be
used directly to test for view serializability.
– Extension to test for view serializability has cost exponential
in the size of the precedence graph.
• The problem of checking if a schedule is view serializable falls
in the class of ...
... read_ts(x) and write_ts(x) with each database item
In concurrency control of databases, transaction processing (transaction management), and other transactional distributed applications, Global serializability (or Modular serializability) is a property of a global schedule of transactions. A global schedule is the unified schedule of all the individual database (and other transactional object) schedules in a multidatabase environment (e.g., federated database). Complying with global serializability means that the global schedule is serializable, has the serializability property, while each component database (module) has a serializable schedule as well. In other words, a collection of serializable components provides overall system serializability, which is usually incorrect. A need in correctness across databases in multidatabase systems makes global serializability a major goal for global concurrency control (or modular concurrency control). With the proliferation of the Internet, Cloud computing, Grid computing, and small, portable, powerful computing devices (e.g., smartphones), as well as increase in systems management sophistication, the need for atomic distributed transactions and thus effective global serializability techniques, to ensure correctness in and among distributed transactional applications, seems to increase.In a federated database system or any other more loosely defined multidatabase system, which are typically distributed in a communication network, transactions span multiple (and possibly distributed) databases. Enforcing global serializability in such system, where different databases may use different types of concurrency control, is problematic. Even if every local schedule of a single database is serializable, the global schedule of a whole system is not necessarily serializable. The massive communication exchanges of conflict information needed between databases to reach conflict serializability globally would lead to unacceptable performance, primarily due to computer and communication latency. Achieving global serializability effectively over different types of concurrency control has been open for several years. Commitment ordering (or Commit ordering; CO), a serializability technique publicly introduced in 1991 by Yoav Raz from Digital Equipment Corporation (DEC), provides an effective general solution for global (conflict) serializability across any collection of database systems and other transactional objects, with possibly different concurrency control mechanisms. CO does not need the distribution of conflict information, but rather utilizes the already needed (unmodified) atomic commitment protocol messages without any further communication between databases. It also allows optimistic (non-blocking) implementations. CO generalizes Strong strict two phase locking (SS2PL), which in conjunction with the Two-phase commit (2PC) protocol is the de facto standard for achieving global serializability across (SS2PL based) database systems. As a result, CO compliant database systems (with any, different concurrency control types) can transparently join existing SS2PL based solutions for global serializability. The same applies also to all other multiple (transactional) object systems that use atomic transactions and need global serializability for correctness (see examples above; nowadays such need is not smaller than with database systems, the origin of atomic transactions).The most significant aspects of CO that make it a uniquely effective general solution for global serializability are the following:Seamless, low overhead integration with any concurrency control mechanism, with neither changing any transaction's operation scheduling or blocking it, nor adding any new operation.Heterogeneity: Global serializability is achieved across multiple transactional objects (e.g., database management systems) with different (any) concurrency control mechanisms, without interfering with the mechanisms' operations.Modularity: Transactional objects can be added and removed transparently.Autonomy of transactional objects: No need of conflict or equivalent information distribution (e.g., local precedence relations, locks, timestamps, or tickets; no object needs other object's information).Scalability: With ""normal"" global transactions, computer network size and number of transactional objects can increase unboundedly with no impact on performance, andAutomatic global deadlock resolution.All these aspects, except the first two, are also possessed by the popular SS2PL, which is a (constrained, blocking) special case of CO and inherits many of CO's qualities.