文档解释
ORA-54032: column to be renamed is used in a virtual column expression
Cause: Attempted to rename a column that was used in a virtual column expression.
Action: Drop the virtual column first or change the virtual column expression to eliminate dependency on the column to be renamed.
ORA-54032错误是由于尝试将虚拟列表达式引用的列更改而引起的，比如ALTER TABLE语句。
官方解释
ORA-54032: column tobe renamed Is usedin a virtual column expression
Cause: An attempt was made to alter a column referenced by a virtual column expression.
Action: Remove references to the column from virtual column expressions and then retry the operation.
常见案例
当使用ALTER TABLE语句试图更改引用虚拟列表达式的列时，就可能出现此ORA-54032错误。
一般处理方法及步骤
1.首先，识别出虚拟列表达式引用的列。
2.从虚拟列表达式中删除引用的列。
3.然后重试ALTER TABLE语句。
