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| Database - Interview Questions and Answers for 'Bank of america' - 2 question(s) found - Order By Newest | ||||
 Frequently asked to experienced developers. Recently asked in many US interviews. | ||||
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| Ans. When multiple external resources are trying to access the DB locks and runs into cyclic wait, it may makes the DB unresponsive. Deadlock can be avoided using variety of measures, Few listed below - Can make a queue wherein we can verify and order the request to DB. Less use of cursors as they lock the tables for long time. Keeping the transaction smaller. | ||||
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 Discuss Correct / Improve  java database architecture  Asked in 7 Companies  expert  frequent | ||||
 Related Questions | ||||
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| Ans. When a Table Join itself , it's a Self Join. For example - we like to know the pair of department names where first dept has lesser employees than the later. Select D1.name , D2.name from Dept D1, Dept D2 where D1.employee_count < D2.employee_count | ||||
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| Discuss Correct / Improve sql joins self join self-join Pair of employee names with first having lesser salary than later Pair of department names where first dept has lesser employees than the later Asked in 26 Companies basic frequent | ||||
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