【優技教育】Oracle 19c OCP 082題庫(Q 3題)- 2024年修正版
考試科目:1Z0-082
考試題量:90
通過分數:60%
考試時間:150min
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第3題:
3、Choose two.
Which is true about the & and && prefixes with substitution variables?
A) Both & and && can prefix a substitution variable name in queries and DML statements.
B) The && prefix will not prompt for a value even if the substitution variable is not previously defined in the session.
C) An && prefix to an undefined substitution variable, which is referenced multiple times in multiple queries, will prompt for a value once per query.
D) & can prefix a substitution variable name only in queries.
E) An & prefix to an undefined substitution variable, which is referenced twice in the same query,will prompt for a value twice.
Answer:AE
(解析:此題的難點在對英文的理解上,答案 C 錯誤的地方是多次查詢,一個是相同的查詢里面引用多次,每次查詢都要提示一次輸入,實際上不需要的。)
A: &和&&都可以在查詢和 DML 語句中作為替換變量名的前綴
Oracle 19c OCP認證需要到Oracle指定的WDP機構,有了培訓記錄之后才能考試,考試需要考2科,分別是082(60%及格)和083(57%及格),兩科都通過之后才能拿到證書。證書如下:
CUUG是甲骨文的金牌WDP合作機構,30多年品牌,培養了數萬名數據庫人才。想快速通過19c OCP考試的同學可以掃碼聯系老師咨詢。