What is the archtetype pattern, Database Management System

Assignment Help:

What is the archtetype/instance pattern?

The archetype/instance pattern happens when one entity tracks occurrences of another entity. A common example is the relationship among CLASS and SECTION, where the actual occurrence of a class occurs when students register for a SECTION of that CLASS. The archetype/instance pattern is executed as an ID-dependent relationship.

Related Discussions:- What is the archtetype pattern

Write short notes on tuple relational calculus, Write short notes on tuple ...

Write short notes on tuple relational calculus. The tuple relational calculation is anon procedural query language. It defines the desired information without giving a particul

Fire department, The State of Newyork certifies firefighters throughout sta...

The State of Newyork certifies firefighters throughout state keep track all of them, as well as the state’s of fire departments. Each fire department has unique department number

What is the need for triggers, What is the need for triggers? Triggers ...

What is the need for triggers? Triggers are useful mechanisms for alerting humans or for starting particular tasks automatically when particular conditions are met.

Fragmentation, let us consider a table having 2200 records and the fixed si...

let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation

Define- relational algebra, Define- relational algebra. The relational ...

Define- relational algebra. The relational algebra is a procedural query language. It having of a set of operations that take one or two relation as input and make a new relati

MYSQL, write an SQL statement to create the database in MYSQL server

write an SQL statement to create the database in MYSQL server

Types of attributes, Attributes attached to an entity can be of various typ...

Attributes attached to an entity can be of various types. Simple The attribute that cannot be further separated into smaller parts and shows the basic meaning is known as a

Operator precedence-data manipulation language, Operator Precedence The...

Operator Precedence The basic operators used in SQL are * / - + Operators of the similar priority are evaluated From Left to right Parentheses are used to force priorit

Database schemas and dependencies, 1. Staff(staffID, firstName, lastName, a...

1. Staff(staffID, firstName, lastName, availabilityID, experience, phone, mobile, email); 2. Availability(availabilityID, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday,

Who will teach, Do you have experts of the dbms

Do you have experts of the dbms

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages