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Explain Recursive relationship type?
Recursive relationship type: A recursive relationship is one in that the similar entity participates more than once in the relationship
Describe about Use Case and external case in DFD The processes are transformed those into the Use Case and external case in DFD has same characteristics which of an actor in O
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
Hello.I have database access assignment which consist of creation Form, Subform, Calculation, Macros
What are the Constituents of File? Also elaborates all the possible file operations? A file is organised logically as sequence of record. These records are mapped onto disk blo
How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
What is Disadvantages Of DBMS ? 1. Cost of Software and Hardware and Migration - A important disadvantage of the DBMS system is cost. 2. Reduced Response and Throughpu
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
Question 1 Suppose the employee employee id, name, designation, salary, attendance and address of any employee has to be stored in a database. You can store these data in a sequen
Using Relational Algebra which query finds customers, who have a balance of over 1000 ? Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find cu
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