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What is DAG?
The class-subclass relationship is shown by a directed acyclic graph.eg: employees can be temporary or permanent. We might be create subclasses temporary \and permanent, of the class employee.
write an SQL statement to create the database in MYSQL server
need a DBMS system on any data for assignment.
why are older data models are being replaced by new data models
random file sharing
Lock Based Protocol A lock is nothing but a mechanism that tells the DBMS whether a particular data item is being used by any transaction for read/write purpose. As there are t
The following relational database schema represents part of a simplified database used by a library: tblBook (BookID, Title, PublisherID, Category,Price) tblPublisher (Publishe
what is un ordered and ordered file managment?
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
Draw an ER diagram for company''s database schema
A relation has: Relational Schema Relation instance Relational Schema: A relational schema shows the relation's name, its attributes and the domain of every a
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