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what do you mean by primary key constraint?
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
What is the full form of DDL? DDL is stand for Data Definition Language.
Define Deadlock recovery measures To recover from deadlock, the cycle in the wait-for-graph should be broken. The common technique of doing this is to rollbac
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
Explain what is RDBMS ? RDBMS - RDBMS is a database management system (DBMS) which stores data within the form of relations. Relational databases are powerful since they need f
why older data models are being replaced by new data models.
Define the Attribute Inheritance The attributes of a higher level entity set are inherited through a lower level entity set made by specialization-generalization hierarchy. Nam
Explain the Natural join Natural join is a binary operator which is written as (R* S) in which R and S are relations. The effect of the natural join is the set of all combinati
a project based on normalization with first, second and third normalization. There need to be a diagram also
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