| Understanding DATA Step Processing |
| Execution
Phase |
Notice that the input pointer now rests on column 14. With column input,
the pointer moves as far as the INPUT statement instructs it and stops in
the column immediately following the last one read.
data perm.update;
infile invent;
input Item $ 1-13 IDnum $ 15-19
Instock 21-22 BackOrd 24-25;
Total=instock+backord;
run;
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Raw Data File Invent
| 1---+----10--V+----20---+- |
| Bird Feeder •LG088 3 20 |
| 6 Glass Mugs SB082 6 12 |
| Glass Tray BQ049 12 6 |
| Padded Hangrs MN256 15 20 |
| Jewelry Box AJ498 23 0 |
| Red Apron AQ072 9 12 |
| Crystal Vase AQ672 27 0 |
| Picnic Basket LS930 21 0 |
| Brass Clock AN910 2 10 |
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