ORA-01761: DML operation does not map to a unique table in the join

文档解释

ORA-01761: DML operation does not map to a unique table in the join

Cause: The primary table is the base table against which the update, insert or delete operation is finally being done. For delete either there is no primary table in the join query or there is more than one. For update or insert the columns specified map to more than one base table.

Action: Change the join specification.

官方解释

ORA-01761：DML操作与合并中的唯一表不匹配。

发生此错误时，您正在尝试执行Update或Delete操作，但这些操作不映射到一个唯一的表。要更改数据，您必须更新或删除特定表中的行，您不能使用此类操作在多个表中更新或删除行。

常见案例

这种错误通常发生在Update或Delete操作尝试更新或删除表中多种行时，但未将查询限制到一个唯一的表中。

正常处理方法及步骤

要解决此问题，请检查给定DML操作，确保它只映射到一个唯一的表。每个Update或Delete操作只能针对唯一的表进行更新或删除。