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why are older data base model are being replaced by new data model
Express the subsequent query in SQL assumes which the data is stored within EMPLOYEE table with relevant fields (i) Display name, job, salary, and hire date of employee who are
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
How to Insert data in your table from another table? insert into e.g, To insert tuples from employee into N_emp created above, use following statement Insert into N_emp
Saving Derived Attributes to Avoid Re-computation As discussed, "redundancy means duplication of exact data". But, if multiple copies of same data are present in the system,
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
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define anomalies and different types of anomalies with example
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
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