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[多选] You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN > BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?()

A . Corrupted blocks, if any, are repaired.
B . Checks are performed for physical corruptions.
C . Checks are performed for logical corruptions.
D . Checks are performed to confirm whether all database files exist in correct locations
E . Backup sets containing both data files and archive logs are created.

You create a data block based on a relation table containing a REF column. You select the REF column for your form module. Which statement about the REF column is true?() It is created as a nondisplay item. 。 The Lock Record property is set to Yes. 。 It cannot be referenced in item level triggers. 。 It is placed on the canvas with the highest sequence number.。 晶界的特点 简述风土、市井小说的主要特征。 Which can appropriately be thrown by a programmer using Java SE technology to create a desktop application?() ClassCastException。 NullPointerException。 NoClassDefFoundError。 NumberFormatException。 ArrayIndexOutOfBoundsExceptio。 李某,女性,37岁。大腿外伤缝合后5d,局部伤口红肿,疼痛,触之有波动感,T38.5℃,伤口换药时哪项不正确() 及时拆除缝线,充分引流。 伤口应每天换药一次。 伤口应每2-3天换药一次。 合理应用抗生素及引流物。 清除伤口坏死组织。 You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN > BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?()
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