[ << label >> [ << label >> ] ...] { assignment_statement | basic_loop_statement | close_statement | continue_statement | cursor_for_loop_statement | execute_immediate_statement | exit_statement | fetch_statement | for_loop_statement | forall_statement | goto_statement | if_statement | null_statement | open_statement | open_for_statement | plsql_block | raise_statement | return_statement | select_into_statement | sql_statement | while_loop_statement }