ON DELETE CASCADE：
The ORA-02292 error can be avoided if a foreign key constraint is defined with
the ON DELETE CASCADE option. Defining a foreign key in this manner causes
Oracle 10g to automatically delete child records when a parent record is deleted.
for example
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/11092280/viewspace-420689/ ，如需转载，请注明出处，否则将追究法律责任。
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