题目
A. They are tied to a specific statement or SQL id.
B. They instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan.
C. They are used to gather only missing statistics.
D. They are created for a query expression where statistics are missing or the cardinality estimates by the optimizer are incorrect.
E. They instruct the optimizer to create only column group statistics.
F. Improve plan accuracy by persisting both compilation and execution statistics in the SYSAUX tablespace.
第1题
A.income statemen
B.statement of owner's equity
C.balance sheet
D.statement of cash flows
第2题
第3题
第4题
Describe three directions in which communication flows within organizations. (描述机构内部的三种交流方式。)
第5题
A.1
B.2
C.4
D.8
第6题
Which one is not one of the three appeals of an argument that Aristotle postulated:()
A、logical appeal
B、Ethical appeal
C、Emotional appeal
D、Emphatic appeal
第7题
A.Ericsson-algorithm
B.GSM-algorithm
C.Ciphering-algorithm
第8题
A.combined
B.made
C.composed
D.formed
第10题
A.Images
B.Metaphors
C.Diction
D.Exaggeration
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