单选题假设需要查询Oracle数据文件的文件名和存储位置，可以使用如下（）方式。ASELECT name，status FROM V$datafileBSELECT name，statusFROM V$userfileCSELECT name，status FROM V$DBADSELECT name，status FROM V$ctrlfile
单选题
假设需要查询Oracle数据文件的文件名和存储位置，可以使用如下（）方式。
A
SELECT name，status FROM V$datafile
B
SELECT name，status FROM V$userfile
C
SELECT name，status FROM V$DBA
D
SELECT name，status FROM V$ctrlfile
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