ocp 19c考题，科目082考试题(12)-about self-join
摘要：
12.Which three statements are true about a self-join? (Choose three.) A. The ON clause must be used B. The query must use two different aliases for th 阅读全文
posted @ 2022-01-11 14:59 alice9313 阅读(56) 评论(0) 推荐(0)
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