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List the drawbacks of relational database system
A) Repetition of data
B) Inability to s certain information.
Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
Availability: A site having the copy of a replicated relation fails, even then the relation may be found in another site. Therefore, the system may carry on to process at least th
#quCreate a database design specification (Enhanced Entity Relationship Diagram (EERD) and Relational Data Model (RDM)) from the given business description. The RDM must be in 3rd
#explain five disadvantages of a dbms..
example of embedded SQL query
What is candidate key? Candidate Key - A candidate key of an entity set is a minimal superkey, which uniquely identifies each row in the relation.
What are the advantages of by using an index and what are its disadvantages ? In difference, if the search key of a secondary index is not a candidate key, it is not sufficient
Explain the difference between optimistic locking and pessimistic locking. Optimistic locking supposes no transaction conflict will occur and deals with the consequences if it
Data slice explanation
what benefit can a company gain by managing its own infrasture and services
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