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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.
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
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what is query processing ,query optimization and performance turring?
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What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
how can apply joins on table
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