Home > Uncategorized > Database Character sets FAQ

Database Character sets FAQ

What is Unicode:

Unicode provides a unique number for every character,
no matter what the platform,
no matter what the program,
no matter what the language.

What is National character set:

It is alternative to the character set.

National character set is used in NCHAR, NVARCHAR2, NCLOB columns. You use these datatypes when you have data that does not fit in your database character set and you want to record them IN SPECIAL COLUMNS.

If using unicode as database character set then there is no need of national character set.
National character set is here for backward compatibility and was useful when unicode did not exist.

What are supplementary characters:

NCHAR, Unicode

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