[单选] Examine this statement: SELECT student_id, gpa FROM student_grades WHERE gpa >&&value; You run the statement once, and when prompted you enter a value of 2.0. A report is produced. What happens when you run the statement a second time?（）

A . An error is returned.
B . You are prompted to enter a new value.
C . A report is produced that matches the first report produced.
D . You are asked whether you want a new value or if you want to run the report based on the previous value.

An administrator is configuring a new cluster and has a requirement for a notification to be generated if the /tmp File System becomes greater than 90% full. Which of the following PowerHA components will support theadministrator’s requirement？（） Pre-defined Events。 User-defined Events。 Remote notification methods。 The integration between RMC and WebSM。徐女士，准备在局部麻醉下行背部脂肪瘤切除术，术前饮食管理的要求是（）禁食4h。禁食6h。禁食8h。禁食24h。不必禁食。日本经营学家认为在现代市场上，永远存在市场的盲点。这一理论被称为（）。经济进化论。不完全市场理论。规模经济理论。市场缝隙理论。 Why would you run the delete obsolete command？（） To remove missing backup set pieces physically from disk。 To remove metadata related to backup set pieces in the control file and the recovery catalog。 To mark as deleted records in the control file and the recovery catalog associated with obsolete backup sets。 To delete backup set pieces associated with backups that are no longer needed due to retention criteria。 To remove old versions of RMAN backu。道德密度 Examine this statement: SELECT student_id, gpa FROM student_grades WHERE gpa >&&value; You run the statement once, and when prompted you enter a value of 2.0. A report is produced. What happens when you run the statement a second time?（）

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[单选] Examine this statement: SELECT student_id, gpa FROM student_grades WHERE gpa >&&value; You run the statement once, and when prompted you enter a value of 2.0. A report is produced. What happens when you run the statement a second time?（）

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