Which of the Following Statements About NEXTVAL and CURRVAL Is

Multiple Choice

Which of the following statements about NEXTVAL and CURRVAL is incorrect?​

A) ​The pseudocolumn NEXTVAL is used to actually generate the sequence value.
B) ​After the value is generated,it is stored in the CURRVAL pseudocolumn so it can be referenced again by a user.
C) A reference to CURRVAL will not cause Oracle 12c to generate a new sequence number; a reference to NEXTVAL,however,will generate a new number.
D) ​NEXTVAL and CURRVAL are pseudocolumns that store unique names for database objects.