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entity relationship diagram about finance
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Types of Data fragmentation
Project Description: Oracle Certified Professional with 20 years of practice, Oracle version 6.0.34, 7.3, 8.0, 8i, 9i, 10G, 11G, 12C. Crossplatform migration, Informix, MSSql
Problem: (a) Briefly explain the ‘Hierarchical Database Model' using appropriate diagram. (b) List and briefly describe five potential benefits of the database approach comp
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
With the help of an example display how records can be deleted and updated in QBE. (i) Increase Pay_Rate of employees along with the skill of ‘cook' by 10%. (ii) Delete employee
how many types of data model in DBMS? explain data abstraction with its different level
CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
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