Bob,
Isolation levels are more of a server issue than 4GL. The default
isolation level
for OnLine is "committed read", *unless* you have created your database as
a
mode ansi database, then you get stuck with "repeatable read" isolation
level.
You can reset the isolation level using the toolsets (SQL,4GL, ESQL/etc)
by using the set isolation to "xxx" statement.
Have fun,
Joanne Dority