ORA-00001: unique constraint (string.string) violated 违反唯一约束条件(.)
ORA-00001: unique constraint (string.string) violated
ORA-00001: 违反唯一约束条件(.)
Cause：
An UPDATE or INSERT statement attempted to insert a duplicate key. For Trusted Oracle configured in DBMS MAC mode, you may see this message if a duplicate entry exists at a different level.
Action：
Either remove the unique restriction or do not insert the key.
错误说明：当在唯一索引所对应的列上键入重复值时，会触发此异常。