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List the table modification commands in SQL?
A) Deletion
B) Updates
C) Insertion
D) Update of a view
, write the relational schema, and draw the new dependency diagrams. Identify the normal forms for each table structure you created
Define data conversion? Helpful to load data into temporary staging tables. Then can write SQL code to do much of data processing. SQL code is simpler and faster to write than
Question: The following relational database schema corresponds to a part of a database used by the Registry Department of a university. DEPARTMENT (d#, d-name, head-of-dept)
Define tuple variable? Tuple variables are used for comparing two tuples in the same relation. The tuple variables are explained in the from clause by way of the as clause.
What are the two approaches to store relations in distributed database? a) Replication b) Fragmentation
Explain Interfaces for parametric Users? Interfaces for Parametric Users - Parametric users, such as bank tellers, frequent have a little set of operations in which they must p
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
explain in detail about crash recovery
Consider a relation s over the attributes A and B with the following characteristics: 5,000 tuples with 10 tuples per page A 2-level B+ tree index on attribute
A Functional dependency is described by X Y between two groups of attributes Y and X that are subsets of R specifies a constraint on the possible tuple that can make a relation
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