32 、Which two are true about the character sets used in an Oracle database?
A) Unicode enables information from any language to be stored using a single character set
B) Unicode is the only supported character set for Oracle databases created using Database Configuration Assistant (DBCA)
C) Single-byte character sets provide better performance than multibyte character sets
D) Single-byte character sets always use 7-bit encoding schemes
E) Multibyte character sets allow more efficient space utilization than single byte character sets.
F) Single-byte character sets always use 8-bit encoding schemes.
?
参考答案:AC
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