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Explain nested relations? Nested relations The assumption of INF is a natural one in the bank examples we have considered. However, not all applications are best modelled
Serialisable Schedules: If the processes of two transactions conflict with each other, how to verify that no concurrency related problems have happened? For this, serialisability t
Question 1 List and explain various Normal Forms. How BCNF differs from the Third Normal Form and 4th Normal forms? Question 2 Describe the concepts of Structural Semantic Da
Which is a legal expression in SQL? SELECT NAME FROM EMPLOYEE is a legal expression in SQL.
What is relational model feature? A relational model feature is much more data independence than some other database models.
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
compare the features of oracle RDBMS with MySQL and Microsoft SQL server
What is DML compiler? DML Compiler: Translates DML statements in a query language within low level instructions understandable through the query evaluation engine. Attempts to
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
Hierarchical
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