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If the deletion violates referential integrity constraint, then three alternatives are available: Default option: - refuse the deletion. It is the job of the DBMS to describ
what are the states of transaction?
Give the two reasons for allowing concurrency
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
What are the requirements to ensure the objectives of file management principle is realized?
Describe about Use Case and external case in DFD The processes are transformed those into the Use Case and external case in DFD has same characteristics which of an actor in O
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
State about the Tables- DBMS Data is stored in columns and rows (much like a spreadsheet -main difference is how data is organised). Every row in a table is known as a record
What are the three data anomalies that are similarly to take place as a result of data redundancy? Can data redundancy be completely eliminated in database approach? Why or why n
Define tuple variable? Tuple variables are used for comparing two tuples in the same relation. The tuple variables are explained in the from clause by way of the as clause.
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