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Objectives
After reading this part, you should be able to:
With the help of a suitable diagram gives module wise explanation of system architecture of DBMS.on..
Before we talk about the relational model in more detail, let us first define some very basic terms used in this model. Tuple Every row in a table shows a record and is cal
What are the reasons of bucket overflow? Explain any two methods for solving this problem. Ans: It is general for file structures to be divided into equal-length partitions, k
Where does view definition stored? A view definition is permanently stored as part of the database.
Illustrate the Deployment Diagram A deployment diagram shows all nodes on network, their processor execution and interconnections. In a dynamic model, this is used to represen
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
1. Staff (staffID --> availabilityID) 2. Services (servicesID --> itemBasedID --> timedBasedID) 3. TimedBased (timedbasedID--> priceid) 4. Clients (clientId, serviceId-->
Implementation and SQL Applications
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
Define check point and its impact on data base recovery. Ans: There could be hundreds of transactions handled per minute, in a large on-line database system.
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