---

What is true about sequences?（）
A:Once created, a sequence belongs to a specific schema.
B:Once created, a sequence is linked to a specific table.
C:Once created, a sequence is automatically available to all users.
D:Only the DBA can control which sequence is used by a certain table.
E:Once created, a sequence is automatically used in all INSERT and UPDATE statements.

---

出自：Oracle认证

显示答案