试题详情
- 单项选择题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.
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