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South Hadley MA 01075 USA The data for subscriber 1002, who has two update transactions, is used below to show what happens when you update an observation in the master data set with corresponding observations from the transaction data set.
As the DATA step iterates, the UPDATE statement continues processing observations in this way until it reaches the end of the master and transaction data sets.
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First, you must transform the raw data into a SAS data set and sort that data set by Subscriber Id so that you can use it to update the master list. The MISSOVER option prevents the INPUT statement from going to a new line to search for values for variables which have not received values; instead, any variables that have not received values are set to missing.San Francisco CA 94124 USA 5 1005 Archuleta, Ruby Box 108 Milagro NM 87429 USA 6 1006 Misiewicz, Jeremy 43-C Lakeview Apts.