标题: ORA-01463: cannot modify column datatype with current constraint(s) [打印本页] 作者: admin 时间: 2016-7-17 14:28 标题: ORA-01463: cannot modify column datatype with current constraint(s) ORA-01463: cannot modify column datatype with current constraint(s) Cause: An attempt was made to modify the datatype of column which has
referential constraints; or has check constraints which only allows changing the
datatype from CHAR to VARCHAR or vise versa. Action: Remove the constraint(s) or do not perform the offending operation.