Variable-length record structures allow different records in the same file to have different lengths.
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Q36: A record is a collection of fields
Q37: A field is a collection of records
Q38: A blocking factor allows different records in
Q39: Most database technologies impose a fixed-length record
Q40: Some database systems can compress unused fields
Q42: When a computer program "reads" a record
Q43: A variable-length record structure means that each
Q44: A fixed-length record structure means that each
Q45: A blocking factor is the number of
Q46: The set of all occurrences of a
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