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Cassandra - Interview Questions and Answers for 'Nosql vs relational' - 2 question(s) found - Order By Newest

 Q1. How different is the Search algorithm when we query Cassandra Tables and When we query Oracle Tables ?Cassandra2017-08-18 09:40:40

Ans. Relational Database uses linear search if we don't query using indices. Performance for linear search is O(n). If indices have been used , relational database uses binary search. Performance for binary search is O(Log n).

Casandra uses hash search. Performance for Hash Search is O(1).

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   Like         Discuss         Correct / Improve     cassandra vs oracle  nosql vs relational  search algorithm


Related Questions

 What is the difference between Oracle , Cassandra and Redis ?
 What is Apache Cassandra ?
 Is Cassandra read optimized or Write optimized ?
 How Cassandra provides better Read performance than Oracle Indices ?
 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++ ?


 Q2. Which of the following databases - Cassandra / Oracle - provides more flexibility about querying the database ?Database2017-08-18 09:44:08

Ans. Oracle as it is not modeled for a particular query or set of queries.

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   Like         Discuss         Correct / Improve     Cassandra  Nosql database  nosql vs relational database


Related Questions

 What is the difference between Oracle , Cassandra and Redis ?
 What is Apache Cassandra ?
 Is Cassandra read optimized or Write optimized ?
 How Cassandra provides better Read performance than Oracle Indices ?
 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 ?
 Why was Cassandra written in Java and not C++ ?



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