Computers and Technology

An index purports to speed data retrieval. you, therefore, index every attribute in each table. select the likely consequence.

a. you optimize data retrieval by using a where statement in your select query.

b. data entry slows as every insert , update, or delete statement must also update every index.

c. data retrieval on the gender column is optimized

d. this technique eliminates the need for a primary key

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