November 2009
Intermediate to advanced
332 pages
10h 8m
English
Content preview from Combining and Modifying SAS® Data Sets: Examples Second Edition
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Example 2.4 Selecting Unique Rows When Concatenating Tables
Goal
Select the unique rows among two or more tables based on the value of a specific column.
Example Features
| Featured Step | PROC SQL |
| Featured Step Options and Statements | UNION set operator |
| Related Technique | DATA step PROC SORT, NODUPKEY option |
Input Tables
Tables MARCHRUNNERS, APRILRUNNERS, and MAYRUNNERS contain the names and running times for the runners in the month that is specified in the table name.
MARCHRUNNERS Obs runner racetime 1 Sanchez, SO 35:49.4 2 Flores, RX 38:32.8 3 Martinez, KF 36:12.3 4 Hayes, MU 35:24.7 5 Carter, RT 39:38.1 6 Rogers, LX 40:22.1 7 Clark, SQ 40:05.8 8 Taylor, TP 38:30.2 9 Smith, JD 37:03.5 10 Green, TF 37:50.0 11 Brown, GL 35:59.2 12 Lee, AO 39:36.4 ...
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