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Chap. 8 Object-Oriented Databases

Chap. 8 Object-Oriented Databases. ????? ?????? SNU Internet Data Base Lab ?? ? ? ?. Contents. Introduction Foundation and Evolution of OODBs Persistence in OODBs Transactions & Concurrency Control in OODBs Recovery in OODBs Versioning Client/Server Architecture and OODBs.

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Virtual training week 8

Virtual training week 8. Sections from 7 to 9. Create table copy_departments As (select * from departments) This syntax used to create table with same structure and same data type and all rows of the originL Table with other name. _____________________________________________

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Database Systems ( ????? )

Database Systems ( ????? ). 9.30.2009 Lecture #3. Course Administration. Please download HW #1 from course homepage It is due 2 weeks from today. This lecture: R&G Chapter 3 Next week reading: R&G Chapter 4.1 ~ 4.2, 5. Surface Computing (MSR). Relational Model. Chapter 3.

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CSCI 305 Introduction to Database Systems

<bookstore> <book category="COOKING"> <title lang ="en">Everyday Italian</title> <author> Giada De Laurentiis </author> <year>2005</year> <price>30.00</price> </book> <book category="FICTION"> <title lang ="en">Harry Potter</title>

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Database Systems ( ????? )

Database Systems ( ????? ). October 4, 2005 Lecture #3. Course Administration. Please download the updated HW #1 This lecture: R&G Chapter 3 Next week reading: R&G Chapter 4.1 ~ 4.2, 5. Ubicomp Project of the Week: I/O Brush (Ryokai, MIT Media Lab).

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The Relational Model Chapter 3

The Relational Model Chapter 3. How is data represented in the relational model? What integrity constraints can be expressed? How can be data created and modified? How can data be manipulated and queried? How can we create, modify and query tables using SQL?

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Misc Topics

Misc Topics. Amol Deshpande CMSC424. Topics. Today Database system architectures Client-server Parallel and Distributed Systems Object Oriented, Object Relational XML OLAP Data Warehouses Information Retrieval. Database System Architectures. Centralized single-user

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The Relational Model

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Dr. Elisabeth Bach IBM

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Database Management System

Database Management System. Module 3: Relational Languages. Structure Query Language (SQL). Structure query languages (SQL) is the most widely used commercial relational database language.

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Sql scripting with Advantage

Sql scripting with Advantage. Chris Franz Systems consultant / advantage evangelist. May 2011. agenda. SQL script overview Syntax Cache System Variables Parameters Stored Procedures User Defined Functions (UDFs). Sql script overview. Benefits

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The Relational Model

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The Relational Model

The Relational Model. Class 2 Book Chapter 3. Relational Data Model Relational Query Language (DDL + DML) Integrity Constraints (IC) (From ER to Relational). Why Study the Relational Model?. Most widely used model in Commercial DBMSs:

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Database Systems I The Relational Data Model

Database Systems I The Relational Data Model. What is a Data Model?. A formal notation (language) for describing data. Structure of the data Conceptual model Higher level of abstraction than data structures in programming languages such as lists or arrays. Operations on the data

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Constraints Group functions

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Constraints

Constraints. CSED421 Database Systems Lab. Constraints. To define an integrity constraint (IC) IC : condition that must be true for any instance of the database 5 types of constraints NOT NULL constraints UNIQUE constraints PRIMARY KEY constraints FOREIGN KEY constraints

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The Relational Model

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ICS 321 Fall 2009 The Relational Model (i)

ICS 321 Fall 2009 The Relational Model (i). Asst. Prof. Lipyeow Lim Information and Computer Science Department University of Hawaii at Manoa. Review. ER model models the application data at the conceptual level it does not assume any data model at the logical level

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Oracle

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