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What is an ERD?
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
When are they useful? Justify with an example. The temporary tables are commonly used to support specialized rollups or exact application processing needs. Unlike a permanent t
My cut off date is very soon in a Database subject and i dont know how to solve anything in it
What are aggregate functions? And list the aggregate functions supported by SQL? Aggregate functions are functions that take a collection of values as input and return a one va
A file of employee have 10,000 blocks on a cylinder of a disk with characteristics r=8ms and btt=0.6ms I want to know the cost of read inthe file under following conditions for a q
Relational and E-R Model There are three types of constraints on relational database that have: DOMAIN CONSTRAINT PRIMARY KEY CONSTRAINT INTEGRITY CONSTRAINT
growing phase and shrinking phase are disjoint, why ?
Due date for May 8
what is meant semantic query optimization? how does it differ from other query optimization techniques?
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