Foreign Key naming scheme

Question

I\'m just getting started working with foreign keys for the first time and I\'m wondering if there\'s a standard naming scheme to use for them?

Given these tables:

Answer 1

My usual approach is

FK_ColumnNameOfForeignKey_TableNameOfReference_ColumnNameOfReference

Or in other terms

FK_ChildColumnName_ParentTableName_ParentColumnName

This way I can name two foreign keys that reference the same table like a history_info table with column actionBy and actionTo from users_info table

It will be like

FK_actionBy_usersInfo_name - For actionBy
FK_actionTo_usersInfo_name - For actionTo

Note that:

I didn't include the child table name because it seems common sense to me, I am in the table of the child so I can easily assume the child's table name. The total character of it is 26 and fits well to the 30 character limit of oracle which was stated by Charles Burns on a comment here

Note for readers: Many of the best practices listed below do not work in Oracle because of its 30 character name limit. A table name or column name may already be close to 30 characters, so a convention combining the two into a single name requires a truncation standard or other tricks. – Charles Burns