attribute-string:

1+ 
1? 
1.0 ASENSITIVE
1.0 INSENSITIVE
1.0 SENSITIVE
1.0.1! DYNAMIC
1 NO SCROLL
1 SCROLL
1 WITHOUT HOLD
1 WITH HOLD
1 WITHOUT RETURN
1 WITH RETURN
1.1! TO CALLER
1.1?
1.1 TO CLIENT
1 fetch-first-clause
1 read-only-clause
1 update-clause
1 optimize-clause
1 isolation-clause
2 (1)