oracle 12C

Write a SQL command to display a new sequence number from the COURSE_NUMBER SEQ sequence. Use a column heading of New # (Hint: Use the DUAL table) New # 100 Write a SQL command to display the current sequence number from the COURSE_NUMBER_SEQ sequence. Use a column heading of Current # (Hint: Use the DUAL table) Current # 100 Query the data dictionary and display the name of every constraint applied to the COURSE table. No other constraints should be displayed. (Hint: Use the USER_CONSTRAINTS table) CONSTRAINT_NAME COURSE SUBJECT_NUMBER_PK COURSE SUBJECT_FK SYS_C0042525