ORA-30746: error occured while trying to drop column “string” in table “string” ORACLE 报错 故障修复 远程处理

文档解释

ORA-30746: error occured while trying to drop column “string” in table “string”

Cause: The user tried to drop a subtype with VALIDATE option which tried to check for stored instances of the type in the stated table

Action: Delete all instances of this subtype and then drop the type.

ORA-30746 错误是一种Oracle 错误,当尝试在表中删除列时出现。它表明Oracle告知受请求事件的表中当前没有指定的列。

官方解释

ORA-30746:“某表中没有指定的列”

常见案例

ORA-30746错误出现在尝试在表中删除列时,查询表时调用改列,或者在运行相关查询时,改列是被现有模式引用时,都可能产生ORA-30746错误。

一般处理方法及步骤

1.检查要删除的列名是否正确

2.检查要删除的列在该表中是否存在

3.检查要删除的列是否被外键关联

4.使用DROP COLUMN语句删除指定列

5.重新创建表,其中不包含要删除的列


数据运维技术 » ORA-30746: error occured while trying to drop column “string” in table “string” ORACLE 报错 故障修复 远程处理