July 2011
Intermediate to advanced
802 pages
19h 12m
English
Content preview from SAS Certification Prep Guide: Base Programming for SAS 9, Third Edition
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Chapter 21: Reading Hierarchical Files
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When you write a DATA step to create one observation per detail record you need to
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distinguish between header and detail records.
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keep header data as a part of each observation until the next header record is encountered.
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hold the current record so other values in the record can be read.
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all of the above
Correct answer: dIn order to create one observation per detail record, it is necessary to distinguish between header and detail records. Use a RETAIN statement to keep header data as part of each observation until the next header record is encountered. You also need to use the @ line-hold specifier to hold the current record so other values in the record can be read. -
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Which ...
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