这些键值可以存储在现有的数据表中或者存储在单独创建的称作外键表的表中。

These keys can be stored in an existing data table or in a separately created table referred to as the external key table.

youdao

当使用外键时(ei列被存储在它们自己的表中)，可以在外键表中找到孤立的记录并将其转化为删除存根。

When external keys are in use (ei columns stored in their own table), we are able to find the orphaned record in the external key table and turn it into a deletion stub.

youdao

对于一对多关系，外键表是靠近线的无穷符号的那个表。

For a one-to-many relationship, the foreign-key table is the table near the line's figure-eight symbol.

youdao