Accessing VSAM Data Sets

Updating a VSAM Data Set

To update a VSAM data set, include an INFILE statement and a FILE statement that point to the same fileref, and specify the VSAM type option in the DATA step:

filename mydata 'myid.newdata' disp=old;
data newdata;
   file mydata vsam;
   infile mydata vsam;
   /* SAS statements */
run;

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