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List the drawbacks of relational database system
A) Repetition of data
B) Inability to s certain information.
Adding Redundant Associations for Efficient Access The expression redundant association means using "duplicate association for proficient access". While analysis, it is not a
Super keys of a relation can have extra attributes. Candidate keys are minimal super key, i.e. such a key have no extraneous attribute. An attribute is known as extraneous if even
what is cascading? what is rollback cascading? please explain in detail
What are the features of embedded SQL? Explain. Embedded SQL - SQL could be implemented within two ways. It can be used interactively or embedded in a host language or throu
Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
need to get answer for questions 3&4 on this page in part 1
explain the level architectures of the database management system
Which file organization provides very fast access to any arbitrary record of a file? Hashed file organization provides very fast access to any arbitrary record of a file.
why are older data base model are being replaced by new data model
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
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