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

Try using upper-cased Version 4 UUID with first octet replaced by FK and '_' (underscore) instead of '-' (dash).

E.g.

• FK_4VPO_K4S2_A6M1_RQLEYLT1VQYV
• FK_1786_45A6_A17C_F158C0FB343E
• FK_45A5_4CFA_84B0_E18906927B53

Rationale is the following

• Strict generation algorithm => uniform names;
• Key length is less than 30 characters, which is naming length limitation in Oracle (before 12c);
• If your entity name changes you don't need to rename your FK like in entity-name based approach (if DB supports table rename operator);
• One would seldom use foreign key constraint's name. E.g. DB tool usually shows what the constraint applies to. No need to be afraid of cryptic look, because you can avoid using it for "decryption".