Example 7.4 Modifying an Indexed Master Data Set in Place When Both the Master and Transaction Data Sets Contain Duplicate Key Values

Goal

Modify in place a master data set with information from a second data set. The master data set is indexed. Both data sets can contain duplicates of the key variables. Update an observation in the master data set with information from all matching observations in the transaction data set. No variables will be added or removed from the master data set and no changes will be made to the descriptor portion of the master data set.

Example Features

Featured StepDATA step
Featured Step Options and StatementsMODIFY statement with KEY= option in conjunction with the REPLACE statement _IORC_ automatic variable Macro ...

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