1.

Overflow resolution is performed when,(a) A hash index overflow is detected(b) Extra hash indices are to be added(c) When the number of partitions are to be increased(d) None of the mentionedI had been asked this question during an internship interview.My question is from Join and Other Operations in division Query Processing and Optimization of RDBMS

Answer»

Correct option is (a) A hash INDEX overflow is DETECTED

The explanation: Hash table OVERFLOWS can be handled by EITHER overflow RESOLUTION or overflow avoidance. Overflow resolution is performed when a hash index overflow is detected.



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