1 EXECUTE statement-name
2? 
2 USING
2.1+ ,
2.1 variable
2 SQL-descriptors
2 USING DESCRIPTOR descriptor-name

SQL-descriptors:

1? INTO
1.1! SQL
1.2 DESCRIPTOR
1.3! LOCAL
1.3?
1.3 GLOBAL
1.4 SQL-descriptor-name
2? USING
2.1! SQL (1) 
2.2 DESCRIPTOR
2.3! LOCAL
2.3?
2.3 GLOBAL
2.4 SQL-descriptor-name