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In which format database schema is written ? Data base schema is written in the DDL format.
Example -GRANT CREATE SESSION TO MCA12; (This command gives system level permission on creating a session - not portable) GRANT SELECT ON EMP TO MCA12; (Object level permi
Give the Introduction of OBJECT DESIGN Strategies which are selected during system design are carried out in object-oriented design. In this procedure, objects which are identi
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
Which method of access uses key transformation? A Hash method of access uses key transformation.
What are the aggregate objects in the data dictionary? Views Match codes Lock objects.
explain participation constraints with examples
Define deadlock avoidance. An alternative method for avoiding deadlocks is to needs additional information about how resources are to be requested. Each request requires the s
With the help of a diagram defines the typical element modules of a DBMS? The functional elements of a database system can be widely divided into: 1) Storage manager and 2) q
Isolation or Independence : The isolation property shows that the updates of a transaction should not be visible till they are committed. Isolation assurance that the progresses of
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