CS157B Lecture 1 Prof. Sin-Min Lee Department of Computer Science San Jose State University Outline of Course Study of principals and techniques of databases Grades ...
Title: Slide 1 Last modified by: Fain Butt Document presentation format: Custom Other titles: Times New Roman Arial WingDings LotusWP Type Default Design Slide 1 ...
Object-Relational DBMSs By Yao-Wen Tu CS157b 12/09/2003 Prof. Sin-Min Lee Introduction to Object-Relational DBMSs Several major software companies including IBM ...
The automated extraction of hidden predictive information from database. Allows users to analyze large databases to solve business decision problems. ...
Domains: 5. constraints Relational model illustrated Defining a relation Schema in SQL SQL ... Basics of the relational model Relational model illustrated ...
The relational data model. including object-relational model. The semistructured-data model ... It's the core of SQL language and every query in SQL gets ...
Relational Algebra and My SQL Prof. Sin Min Lee Deparment of Computer Science San Jose State University Functional Dependency 4. Find all the candidate keys for the ...
SQL is an example of a transform-oriented language. ... A column number (deprecated) Source: Database Systems Connolly/Begg. Sorting. SELECT type, rent ...
The query will select rows from the source tablename and output the ... FROM Staff ) AS salDiff. FROM Staff. WHERE salary ( SELECT AVG(salary) FROM Staff ) ...
... likely to happen if a particular type of event occurs ... Predict the future ... Helps making decision of what kind of group of people the company should target ...
Each attribute value is atomic. So no multiple-valued or composite attributes ... Attributes are atomic (cont.) All other attributes values are duplicated ...
Searching just like in a binary search tree. Starts at the root, works down to the leaf level ... Database System Concepts. New York: McGraw-Hill, 2006. ...
Title: Data Mining and Data Warehousing Author: Owner Last modified by: Owner Created Date: 11/18/2004 3:31:18 PM Document presentation format: On-screen Show
Relational Algebra and My SQL(II) Prof. Sin Min Lee Deparment of Computer Science San Jose State University Lecture 12: Further relational algebra, further SQL www.cl ...
Title: ID3 and C4.5 Author: Lee Last modified by: Computer Science Department Created Date: 4/29/2006 5:24:03 PM Document presentation format: On-screen Show
The 'ch' originates from the Greek alphabet where X is the letter 'ch' or 'chi' ... package that enables authors to typeset and print their work at the highest ...
an attribute (or set of attributes) that uniquely identifies a row ... is a set of attributes A1, ..., An s.t. for any other attribute B, we have A1, ..., An B ...
A distributed database system consists of loosely coupled sites that share no ... is used for hotel and airline reservations, stock market transactions, banking ...
The types of query provided by the Microsoft Access DBMS QBE facility. ... When we create a new query, Microsoft Access displays the New Query dialog box ...
Primarily a tool to validate and improve a logical design so that it ... Price: degraded query, display, reporting. 11/27/09. 3. Functional Dependency and Keys ...
Person (SSN, Name, Address, Hobby) ... since the key is (SSN, Hobby) HasAccount (AcctNum, ClientId, OfficeId) ... SSN Name Address Hobby. 1111 Joe 123 Main ...
SALES/PRODUCTS: the ids of the suppliers supplying ALL products. 9/21/09 ... all products such that there exists at least one supplier not supplying it. ...