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What is object containment?
References among objects can be used to model dissimilar real-world concepts.
brief history,definition,current trends and future trends if any of data fragmentation
Advantages of Database management system Let us summarize the advantages. Reduction of Redundancy: This is perhaps the most important advantage of using DBMS. Redundancy i
What is a data dictionary? A data dictionary is a data structure which keeps Meta data about the structure of the database i.e. the schema of the database.
What is the main advantage of the object model? What are its different components? The object model focuses on the logical data structures. Each object model comprises of many
What are the drawbacks of File Oriented System in details?
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
What is a view in SQL? When can views be updated? A view is a virtual table which consists of columns from one or more tables. Through it is same to a table; it is stored in
Write an sql statement to find what is the percentage of home policies which are from the state of Arizona out of all Home policies by Policy Value.
What is a shadow copy scheme? It is simple, but efficient, scheme known as the shadow copy schemes. It is based on making copies of the database called shadow copies that singl
What is object containment? References among objects can be used to model dissimilar real-world concepts.
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