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| Database - Interview Questions and Answers for 'Sears' - 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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| Write Java code that would cause deadlock ? | |||||||||||
| How can multi threading lead to a deadlock ? | |||||||||||
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| Ans. Cassandra uses Hash Search which provides a look time of O(1) whereas Oracle Indices uses Binary Search that provide a lookup time of O(Log n). | |||||||||||
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| Discuss Correct / Improve cassandra hash search hash search vs binary search | |||||||||||
| Related Questions | |||||||||||
| What is the difference between Oracle , Cassandra and Redis ? | |||||||||||
| What is Apache Cassandra ? | |||||||||||
| Is Cassandra read optimized or Write optimized ? | |||||||||||
| How different is the Search algorithm when we query Cassandra Tables and When we query Oracle Tables ? | |||||||||||
| Can we query Cassandra Tables without specifying the partition id in the where clause ? | |||||||||||
| What are the restrictions on querying Cassandra Tables ? | |||||||||||
| Which of the following databases - Cassandra / Oracle - provides more flexibility about querying the database ? | |||||||||||
| Why was Cassandra written in Java and not C++ ? | |||||||||||
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