单选题A user issues a SELECT command against the Oracle database. Which of the following choices describes a step that Oracle will execute in support of this statement?（）AAcquire locks on table queried BGenerate redo for statement CFetch data from disk into memory DWrite changes to disk
单选题
A user issues a SELECT command against the Oracle database. Which of the following choices describes a step that Oracle will execute in support of this statement?（）
A
Acquire locks on table queried
B
Generate redo for statement
C
Fetch data from disk into memory
D
Write changes to disk
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