Oracle supports most national, international, and vendor-specific encoded character set standards. A complete list of character sets supported by Oracle appears in Oracle Database Globalization Support Guide.
Oracle Database complies fully with Unicode 4.0, the fourth and most recent version of the Unicode standard. For up-to-date information on this standard, visit the Web site of the Unicode Consortium:
Oracle uses UTF-8 (8-bit) encoding by way of three database character sets, two for ASCII-based platforms (UTF8 and AL32UTF8) and one for EBCDIC platforms (UTFE). If you prefer to implement Unicode support incrementally, then you can store Unicode data in either the UTF-16 or UTF-8 encoding form, in the national character set, for the SQL
NCHAR data types (
See Also:Oracle Database Globalization Support Guide for details on Oracle character set support