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What are the properties in a relation ?
In a relation Ordering of rows is immaterial and No two rows are identical.
A basic model of Database Access Control Models of database access control have grown out of previous work on protection in operating systems. Let us talk about one simple mode
Object-based Models: Use objects as key data representation components . Examples:- Entity-Relationship Model: It is a collection of real world objects known as entitie
Consider the subsequent relation Professor (Pfcode, dept, head, time) It is assumed that (i) A professor can work in much more than one
Guidelines for creation of table: Table name should begin with an alphabet. In table name, single quotes and blank spaces are not allowed. Reserve words of that DBM
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
Normalize the given relation to 3NF, justifying each step
List and also explain the dissimilar stages of DDLC ?
Determine the Other System Design Issue How to realise subsystems; through hardware or software? How is object model mapped on chosen hardware software? Mapping
Create table employee and enter employee data in SQL? Consider the following relational schemas: EMPLOYEE (EMPLOYEE_NAME, STREET, CITY) WORKS (EMPLOYEE_NAME, COMPANYNAME, SAL
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