oracle ocp 19c考题，科目082考试题(19)-set unused column
摘要：
19、choose the best answer Evaluate the following SQL statement: ALTER TABLE hr.emp SET UNUSED (mgr_id); Which statement is true regarding the effect o 阅读全文
posted @ 2022-01-24 10:16 alice9313 阅读(48) 评论(0) 推荐(0)
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