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Which type can store a collection of objects of any type?

Which type can store a collection of objects of any type?

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asked Jul 21, 2021 in MySQL by Genesis (122k points)

Which type can store a collection of objects of any type?

(a) GEOMETRYCOLLECTION

(b) MULTIPOINT

(c) MULTILINESTRING

(d) MULTIPOLYGON

The question was posed to me in final exam.

Query is from Spatial Data Types topic in chapter Data Type Reference, Operators and Functions of MySQL

mysql
data type reference
operators and functions
spatial data types

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1 Answer

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answered Jul 23, 2021 by Grace (692k points)
selected Jul 25, 2021 by Genesis

Best answer

The correct answer is (a) GEOMETRYCOLLECTION

Explanation: ‘GEOMETRYCOLLECTION’ can store a collection of objects of any type. The other collection types like ‘MULTIPOINT’, ‘MULTILINESTRING’, ‘MULTIPOLYGON’ and ‘GEOMETRYCOLLECTION’ restrict collection members to those having a particular geometry type.

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