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Which of the following statements is/are true regarding some advantages that an object-oriented DBMS (OODBMS) offers over a relational database?
- An OODBMS avoids the 'impedance mismatch' problem.
- An OODBMS avoids the 'phantom' problem.
- An OODBMS provides higher performance concurrency control than most relational databases.
- An OODBMS provides faster access to individual data objects, once they have been read from disk.
- a)2 and 3 only
- b)1 and 4 only
- c)1, 2, and 3 only
- d)1, 3 and 4 only
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Which of the following statements is/are true regarding some advantage...
Introduction:
An object-oriented database management system (OODBMS) is a type of database management system that supports the storage and retrieval of objects rather than data in tabular format. In comparison, a relational database organizes data into tables with rows and columns. Both types of databases have their advantages and disadvantages. This response will explain why statement 1 and 4 are true regarding the advantages of an OODBMS over a relational database.
Impedance Mismatch Problem:
The "impedance mismatch problem" refers to the mismatch between the object-oriented programming (OOP) paradigm used in application development and the relational data model used in a relational database. In a relational database, data is stored in tables with rows and columns, while in OOP, data is organized into objects with attributes and methods. This mismatch can make it challenging to map objects to tables and vice versa, leading to a loss of information and efficiency.
Advantage of OODBMS:
An OODBMS avoids the impedance mismatch problem by directly storing objects in the database. This means that the object structure is preserved, and there is no need for complex mapping between objects and tables. This advantage allows developers to work with objects in their natural form, improving productivity and reducing the complexity of the development process.
Faster Access to Individual Data Objects:
Once data objects have been read from disk, an OODBMS provides faster access to individual data objects compared to a relational database. In a relational database, data is stored in tables, and accessing individual objects requires navigating through the table structure. On the other hand, an OODBMS directly stores objects, allowing for direct access to individual objects. This reduces the overhead of navigating through tables and improves the performance of accessing specific data objects.
Conclusion:
Overall, an OODBMS offers advantages over a relational database by avoiding the impedance mismatch problem and providing faster access to individual data objects. The preservation of object structure in an OODBMS eliminates the need for complex mapping, making development more efficient. Additionally, the direct storage of objects allows for faster access to data objects, improving performance. These advantages make OODBMS a suitable choice for applications that heavily rely on object-oriented programming paradigms.
An object-oriented database management system (OODBMS) is a type of database management system that supports the storage and retrieval of objects rather than data in tabular format. In comparison, a relational database organizes data into tables with rows and columns. Both types of databases have their advantages and disadvantages. This response will explain why statement 1 and 4 are true regarding the advantages of an OODBMS over a relational database.
Impedance Mismatch Problem:
The "impedance mismatch problem" refers to the mismatch between the object-oriented programming (OOP) paradigm used in application development and the relational data model used in a relational database. In a relational database, data is stored in tables with rows and columns, while in OOP, data is organized into objects with attributes and methods. This mismatch can make it challenging to map objects to tables and vice versa, leading to a loss of information and efficiency.
Advantage of OODBMS:
An OODBMS avoids the impedance mismatch problem by directly storing objects in the database. This means that the object structure is preserved, and there is no need for complex mapping between objects and tables. This advantage allows developers to work with objects in their natural form, improving productivity and reducing the complexity of the development process.
Faster Access to Individual Data Objects:
Once data objects have been read from disk, an OODBMS provides faster access to individual data objects compared to a relational database. In a relational database, data is stored in tables, and accessing individual objects requires navigating through the table structure. On the other hand, an OODBMS directly stores objects, allowing for direct access to individual objects. This reduces the overhead of navigating through tables and improves the performance of accessing specific data objects.
Conclusion:
Overall, an OODBMS offers advantages over a relational database by avoiding the impedance mismatch problem and providing faster access to individual data objects. The preservation of object structure in an OODBMS eliminates the need for complex mapping, making development more efficient. Additionally, the direct storage of objects allows for faster access to data objects, improving performance. These advantages make OODBMS a suitable choice for applications that heavily rely on object-oriented programming paradigms.
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Community Answer
Which of the following statements is/are true regarding some advantage...
- An OODBMS avoids the 'impedance mismatch' problem. Correct.
- An OODBMS does not avoid the 'phantom' problem. Incorrect
- An OODBMS does not provide higher performance concurrency control than most relational databases, since it is distributed. Incorrect
- An OODBMS provides faster access to individual data objects, once they have been read from disk. Correct
So, option (2) is correct.
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Which of the following statements is/are true regarding some advantages that an object-oriented DBMS (OODBMS) offers over a relational database? An OODBMS avoids the impedance mismatch problem. An OODBMS avoids the phantom problem. An OODBMS provides higher performance concurrency control than most relational databases. An OODBMS provides faster access to individual data objects, once they have been read from disk.a)2 and 3 onlyb)1 and 4 onlyc)1, 2, and 3 onlyd)1, 3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer?
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Which of the following statements is/are true regarding some advantages that an object-oriented DBMS (OODBMS) offers over a relational database? An OODBMS avoids the impedance mismatch problem. An OODBMS avoids the phantom problem. An OODBMS provides higher performance concurrency control than most relational databases. An OODBMS provides faster access to individual data objects, once they have been read from disk.a)2 and 3 onlyb)1 and 4 onlyc)1, 2, and 3 onlyd)1, 3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Which of the following statements is/are true regarding some advantages that an object-oriented DBMS (OODBMS) offers over a relational database? An OODBMS avoids the impedance mismatch problem. An OODBMS avoids the phantom problem. An OODBMS provides higher performance concurrency control than most relational databases. An OODBMS provides faster access to individual data objects, once they have been read from disk.a)2 and 3 onlyb)1 and 4 onlyc)1, 2, and 3 onlyd)1, 3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is/are true regarding some advantages that an object-oriented DBMS (OODBMS) offers over a relational database? An OODBMS avoids the impedance mismatch problem. An OODBMS avoids the phantom problem. An OODBMS provides higher performance concurrency control than most relational databases. An OODBMS provides faster access to individual data objects, once they have been read from disk.a)2 and 3 onlyb)1 and 4 onlyc)1, 2, and 3 onlyd)1, 3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer?.
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