Naming convention for unique constraint

Question

Naming conventions are important, and primary key and foreign key have commonly used and obvious conventions (PK_Table and FK_Table_ReferencedTable, re

Answer 1

My naming convention for indices and constraints:

• Primary key. _PK
• Unique index/constraint. _AK{xx}
• Non-Unique index. _IX{xx}
• Check constraint. _CK{xx}
• Default constraint. _DF{xx}
• Foreign key constraint. _FK{xx}

Where {xx} is a 2-digit sequence number, starting at 01 for each constraint type per table. Primary key doesn't get a sequence number since there can be only one. The 2-char alpha suffix meanings are:

• PK: Primary Key
• AK: Alternate Key
• FK: Foreign Key
• IX: IndeX
• CK: ChecK
• DF: DeFault

I generally want to group metadata/system catalog data by the controlling object rather than by object type.