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How external/conceptual mapping and conceptual /internal mapping is performed
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
What is meant by functional dependencies? Consider a relation schema R and α C R and β C R. The functional dependency α ->β holds on relational schema R if in any legal relati
Project Description: The work is about founding the best skilled person for the job. I will give you the job description. Skills required are Data Entry, Database Administrat
What are the DBMS languages? Briefly explain? Data Definition language (DDL):A database schema is specified through a set of definitions expressed through a special language
growing phase and shrinking phase are disjoint, why ?
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
Differentiate between the object oriented decomposition and the structured decomposition? Process-oriented (structural) decomposition divides a complex process, function or tas
The functions of DBA ?
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