'Cartesian product operation' presentation slideshows

Chapter 4: SQL

Chapter 4: SQL. Basic Structure Set Operations Aggregate Functions Null Values Nested Subqueries Derived Relations Views Modification of the Database Joined Relations Data Definition Language Embedded SQL, ODBC and JDBC. Banking Example (keys underlined).

1.24k views • 72 slides

SQL

SQL. Data Definition Language Insertions Basic Query Structure Set Operations Aggregate Functions Null Values Nested Subqueries Derived Relations Views Deletions and Modifications Joined Relations Application Programming. Data Definition Language (DDL).

684 views • 54 slides

Relational Algebra

662 views • 51 slides

Chapter 2: Intro to Relational Model

Chapter 2: Intro to Relational Model. Outline. Structure of Relational Databases Database Schema Keys Schema Diagrams Relational Query Languages The Relational Algebra. Example of a Instructor Relation. attributes (or columns). tuples (or rows). Relation Schema and Instance.

303 views • 30 slides

Chapter 2: Intro to Relational Model

Chapter 2: Intro to Relational Model. Outline. Structure of Relational Databases Database Schema Keys Schema Diagrams Relational Query Languages The Relational Algebra. Example of a Instructor Relation. attributes (or columns). tuples (or rows). Relation Schema and Instance.

309 views • 30 slides

The Relational Algebra

The Relational Algebra. CONTENTS. 1 Relational Algebra Operations From Set Theory * UNION * INTERSECTION * MINUS * CARTESIAN OPERATION 2 Binary Relational Operations * JOIN * DIVISION. Relational Algebra Operations From Set Theory.

364 views • 24 slides

E-R Diagram for a Banking Enterprise

E-R Diagram for a Banking Enterprise. Rel. Schema for a Banking Enterprise. branch (branch-name, branch-city, assets) customer (customer-name, customer-street, customer-only) account (account-number, branch-name, balance) loan (loan-number, branch-name, amount)

5.23k views • 22 slides

Binary Operations in Relational Algebra & SQL

Binary Operations in Relational Algebra & SQL. Set Based: UNION, INTERSECTION, DIFFERENCE. UNION operation. Example. A. RESULT=STUDENT INSTRUCTOR. B. Suppose names of people are distinct. SQL for previous example Fig 6.4: (SELECT Fn, Ln FROM STUDENT) UNION

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Klausa where 1

Klausa where 1. The where clause corresponds to the selection predicate of the relational algebra. If consists of a predicate involving attributes of the relations that appear in the from clause.

181 views • 8 slides