1 PREPARE statement-name
2? 
2.0 USING
2.0.1! SQL
2.0.2 DESCRIPTOR
2.0.3! LOCAL
2.0.3?
2.0.3 GLOBAL
2.0.4 SQL-descriptor-name
2.0 INTO
2.0.1 descriptor-name
2.0.2? USING
2.0.2.1 NAMES
2.0.2.1 SYSTEM NAMES
2.0.2.1 LABELS
2.0.2.1 ANY
2.0.2.1 BOTH
2.0.2.1 ALL
3 FROM string-expression
3.0? ATTRIBUTES attr-variable
3.1 FROM variable