试题详情
- 单项选择题（）是由PL/SQL所提供的系统异常。当PL/SQL应用程序违反了Oracle规则或者系统限制，则会隐含地触发一个内部异常。
A、预定义异常
B、自定义异常
C、系统错误
D、内存溢出
- A
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