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What is a Built-in
A notation of identity is built-into the data model or programming language and no user-supplied identifier is needed. This form of identity is used in object oriented systems.
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
What is Object Oriented model? This model is based on collection of objects. An object has values stored in instance variables with in the object. An object also having bodies
The First Normal Form (1NF) Let us first describe 1NF: Definition: A relation (table) is in 1NF if 1. There are no duplicate tuples or rows in the relation. 2.
notes about update opreation
From SAD to OOAD (Structured Analysis and Design (SAD) to Object Oriented Analysis and Design (OOAD). We will find here how we can map various models in SAD to different model
What is a candidate key? Minimal super keys are known as candidate keys.
Section A: Use the following tables to create a database called College. Use SQL commands. Student stuid(primary) lastName firstName
what are the main characteristics of database
Hot Backup: Some sites cannot terminate the database while creating a backup copy of the files. The cold backup is not a reliable option. So different kinds of backing up database
need to get answer for questions 3&4 on this page in part 1
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