A character set is a collection of symbols and code. A collation is a set of rules for comparing the characters in a character set.
OceanBase Database provides the following character set and collation features:
Use various character sets to store strings.
Use various collations to compare strings.
Use strings of different character sets and collations on the same server or in the same database or table.
Enable specifications for character sets and collations at the database, table, or column level.