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Describe the algorithm for updating indices for a single level index when a record is
(i) Inserted (ii) deleted
What will be the modification if there are multilevel indices?
Ans: Inserted: The time it acquires to insert a new data item. This value involves the time it takes to find out the correct place to insert the new data item, also the time it takes to update the index structure.
Deleted: The time it receives to delete a data item. This value involves the time it takes to find the item to be deleted, also the time it takes to update the index structure.
he SQL query that will return the order number, quantity ordered, price each and total cost of an order (quantity * price each) from the order details table. Label the calculated c
Explain Data Dictionary in short?
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explain thee diffrent types of data models
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