National Character Set

National character sets are alternative character sets that allow you to store Unicode character data that does not have a comparable Unicode database character set. This is only one of the reasons to consider a different national character set from the database character set. Others include differences in properties that have a different character-encoding scheme that might be more desirable for extensive processing operations and ease of programming in the chosen national character set.

Oracle has provided the NCHAR, NVARCHAR2, and NCLOB data types in the Unicode encoding schemes.

NCHAR, NVARCHAR2, and NCLOB are the only ...

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