Multiple tables in Mysql delete the same ID record method _mysql

The problem comes from a 5-year-old Baidu know the answer, just see this problem when I just went to work 21 days, then according to their own that little experience and the temporary operation of the test made the right answer at that time:

But was quickly denied, I guess the main reason is that I said the last word is too absolute, but because I too believe in themselves, and there are a lot of reasons to support, so there is no in-depth study.

Recently, a netizen commented on my answer, I began to check Baidu, found that Mysql4.0 above version can be deleted by a delete multiple table data.
It seems that I did in the fraught, can only say sorry, the landlord did not choose my answer, or sin big.

Finally, summarize:

MySql4.0 above supports delete multiple tables delete t1,t2 from T1.refid=t2.id

SQL Server is not supported until 2008

Oracle is virtually unused, unsure, and is found on the web is not supported delete data to delete multiple tables

For databases that do not support delete deletes multiple tables, you can do some upfront work, such as triggers, foreign keys.

You can implement "one delete" to delete data from multiple table and table.