Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 17 Jan 2018 My Price 4.00

nested query

Consider the bank database of Figure 13.9, where the primary keys are underlined. Construct the following SQL queries for this relational database.

a. Write a nested query on the relation account to find, for each branch with name starting with B, all accounts with the maximum balance at the branch.

b. Rewrite the preceding query, without using a nested sub query; in other words, decorrelate the query. c. Give a procedure (similar to that described in Section 13.4.4) for decorrelating such queries.

 

Answers

Maurice Tutor
(5)
Status NEW Posted 17 Jan 2018 10:01 PM My Price 4.00

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