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what is check point in database management system
What type of view of total database content? Data base content Conceptual view of total database contain.
What is a foreign key, and what is it used for? A foreign key is used to establish relationships between relations in the relational model. Technically, a foreign key is a colu
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
Attributes and its types explain?
brief history,definition,current trends and future trends if any of data fragmentation
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the delet
1.Suppose you are given a dataset that consists of a random sample of tasters, on which the following variables were obtained: (y) Zpref = taste preference for green beans store
State about the Tables- DBMS Data is stored in columns and rows (much like a spreadsheet -main difference is how data is organised). Every row in a table is known as a record
what is query processing?
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