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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 is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
how many types of data model in DBMS? explain data abstraction with its different level
Write A short note on temporary tables? Temporary Tables - Temporary tables exists solely for a particular session, or whose data persists for the duration of the transaction
Explain Growing Phase of locking Growing Phase: In this phase the transaction can only obtain locks, but cannot release any lock. The transaction enters the growing phase as so
Which is a valid SQL type? A valid SQL Should be in CHARACTER it is should be NUMERIC and FLOAT.
example of bank
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
What is transaction? Collections of operations that form a single logical unit of work are known as transactions.
management information system based on functional organisation
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