多选题You are in the middle of a transaction and very crucial data has been modified. Because of a hardware failure， the instance has shut down before synchronizing all the database files. Which two statements are true？（）AOn startup， SMON coordinates instance recovery.BOn startup， CKPT coordinates instance recovery.COn startup， use RMAN to perform instance recovery.DUncommitted changes will be rolled back after the database is opened.EOn startup， perform media recovery and then instance recovery.FOn startup， all the files will be synchronized and you get both committed and uncommitted data.
多选题
You are in the middle of a transaction and very crucial data has been modified. Because of a hardware failure， the instance has shut down before synchronizing all the database files. Which two statements are true？（）
A
On startup， SMON coordinates instance recovery.
B
On startup， CKPT coordinates instance recovery.
C
On startup， use RMAN to perform instance recovery.
D
Uncommitted changes will be rolled back after the database is opened.
E
On startup， perform media recovery and then instance recovery.
F
On startup， all the files will be synchronized and you get both committed and uncommitted data.
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