MySQL error code
MySQL error 3720
MySQL server error 3720 is ER_DEPRECATED_NATIONAL, reported with SQLSTATE HY000.
NATIONAL/NCHAR/NVARCHAR implies the character set UTF8MB3, which will be replaced by UTF8MB4 in a future release. Please consider using CHAR(x) CHARACTER SET UTF8MB4 in order to be unambiguous.
| Error | 3720 |
|---|---|
| Name | ER_DEPRECATED_NATIONAL |
| SQLSTATE | HY000 |
| Group | Server errors |
Source: MySQL 8.4 Error Reference