Example

For the table TELBOOK, move the current row pointer (CRP) to the row immediately before its first row.
ISPEXEC TBTOP TELBOOK
Set the program variable BUFFER to contain:
TBTOP TELBOOK
Set program variable BUFLEN to the length of the variable BUFFER. Issue the command:

CALL ISPEXEC (BUFLEN, BUFFER);
or alternately
CALL ISPLINK ('TBTOP   ','TELBOOK ');