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Define object-relational systems? Systems that give object-oriented extensions to relational systems are known as object-relational systems.
what is cascading rollback
ERD Diagram of Medical Recruitment Agency?
Question: A DBMS built for Online Transaction Processing (OLTP) is generally regarded as unsuitable for data warehousing. Each system is designed with a different set of requir
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
Defining Internal Classes and Operations When we enlarge algorithms, new classes can be added to the store intermediate results. A complex operation could be looked at, as a c
what is er digram given that example of hospital,bank and library er digram.
(a) Design a query plan for the following distributed query: An application at site B wants to compute a join of STUDENT ? Id=StudId TRANSCRIPT where STUDENT (Id,Major) is at site
Mention the type of constraints we can specify in the CREATE command of DDL. The type of constraints that can be specified are as follows:- PRIMARY KEY, NOT NULL, UNIQUE, FOR
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