DELETE Statement - Format

1 DELETE file-name
2? RECORD
3? FORMAT (1) 
3.1? IS
3.2 identifier-1
3.2 literal-1
4? NULL-KEY-MAP (1) 
4.1? IS
4.2 identifier-2
5? INVALID
5.1? KEY
5.2 imperative-statement-1
6? NOT INVALID
6.1? KEY
6.2 imperative-statement-2
7? END-DELETE