READNEXT

1 READNEXT  FILE(filename)
2 INTO(data-area)
2 SET(ptr-ref)
3? 
3 UNCOMMITTED
3 CONSISTENT
3 REPEATABLE
3 UPDATE  TOKEN(data-area)
4 RIDFLD(data-area)
5? KEYLENGTH(data-value)
6? REQID(data-value)
7? 
7 SYSID(systemname)  LENGTH(data-area)
7 LENGTH(data-area)
8? 
8 RBA
8 RRN
9? 
9 NOSUSPEND