A file organization where files are not stored in any particular order is considered a heap file organization.
File organization directs to the method data exists stored in a file. File organization exists extremely crucial because it defines the techniques of access, efficiency, flexibility, and storage devices to utilize. There exist four forms of organizing files on a storage media.
A heap file exists as an unordered collection of records, stored on a set of pages. This class supplies basic support for inserting, specifying, updating, and deleting documents. Temporary heap files exist utilized for external sorting and in different relational operators.
Heap file organization indicates that any record can be established wherever there exists space for that record. There exists no sequence of records. Typically there exists a single file for each relation.
Therefore, the correct answer is option d. heap file organization.
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