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what is Nested relational model? Explain with examples.
What is the full form of DDL? DDL is stand for Data Definition Language.
List any two disadvantages of a database system ? The disadvantages of database system are: • Database systems are difficult, complex, and time-consuming to design. • Substanti
What is a view? A view is a logical view on one or more tables. A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived f
real life situations where database management system are most suitable
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
Describe identifying relationship? Identifying relationship: It is relationship among strong entity and a weak entity it is represented through a doubly outlined diamond in C
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
how to implement mid square hashing?
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