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I want to delete rows in Oracle tables which are connected with foreign key. In order to delete row from table I have two options:
Two DML statements which must be run in strict order.
Oracle before delete Trigger on the primary key table.
Which approach is better? I’m using JDBC Oracle thin driver with Java 7.
Don’t put a trigger. You shouldn’t hide important stuff like that.
CASCADE is an option, but personnaly I would go for a stored procedure which does the delete. So the guy who wants to delete a line has to use the procedure and he (she) knows it’ll also delete lines in the daughter table.