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Client Server Databases- The concept behind the Client/Server systems is simultaneous, cooperative processing. It is an approach that presents a one systems view from a user's viewpoint. It includes processing on multiple, interconnected machines. It gives coordination of activities in a manner transparent to end-users. Keep in mind, client-server database is distribution of activities into clients & a server. It might be have a centralised or distributed database system at the server backend. It is primarily a very well-liked commercial database implementation model.
Explain Recursive relationship type? Recursive relationship type: A recursive relationship is one in that the similar entity participates more than once in the relationship
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
What is a checkpoint? List the operations to be performed by the system when a checkpoint is to be taken. What does the recovery system do if there is a crash? There is large n
Question 1: (a) Planning and management of ICT projects have a very poor record in developing countries. Briefly explain five critical success factors for correct implementa
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
What is OLTP (Online Transaction Processing)? In OLTP - online transaction processing systems relational database design use the discipline of data modeling and generally follo
What is the aim of logical schema ? The main motive of the logical schema is to ensure the portability of procedures and models on various physical schemas at runtime.
To eliminate duplicate rows (distinct operator) Example: SELECT DISTINCT DEPTNO FROM EMP;
Locks: Serialisabilty is just a test whether a given interleaved schedule is ok or has a concurrency related trouble. Though, it does not make sure that the interleaved concurrent
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
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