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The default index type for MEMORY tables is __________

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The default index type for MEMORY tables is __________

(a) HASH

(b) SPATIAL

(c) FULLTEXT

(d) UNIQUE

I had been asked this question in a national level competition.

My query is from Creating, Dropping, Indexing and Altering Tables topic in section Using SQL to Manage Data of MySQL

1 Answer

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Best answer
The correct option is (a) HASH

The best explanation: The ‘HASH’ index is the default index type for ‘MEMORY’ tables. ‘SPATIAL’ can only be used with ‘MyISAM’ tables for the spatial data types. ‘FULLTEXT’ is used for performing full-text searches.

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