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Is there some standard way to name indexes for SQL Server? It seems that the primary key index is named PK_ and non-clustered indexes typically start with IX_. Are there any naming conventions beyond that for unique indexes?
4 Answers
I use
PK_ for primary keys
UK_ for unique keys
IX_ for non clustered non unique indexes
UX_ for unique indexes
All of my index name take the form of
<index or key type>_<table name>_<column 1>_<column 2>_<column n>
I usually name indexes by the name of the table and the columns they contain:
ix_tablename_col1_col2
Is it worth a special prefix for indices associated with foreign keys? I think so, since it reminds me that indices on foreign keys are not created by default, and so it is easier to see if they are missing.
For this, I am using names that match the name of the foreign key:
FK_[table]_[foreign_key_table]
or, where multiple foreign keys exist on the same table
FK_[table]_[foreign_key_table]_[foreign_key_field]
I know a old topic but thought I'd throw in my 2cents worth
- PKC_ Primary Key, Clustered
- PKNC_ Primary Key, Non Clusterd
- NCAK_ Non Clustered, Unique
- CAK_ Clustered, Unique
- NC_ Non Clustered
Example;
NCAK_AccountHeader_OrganisationID_NextDate
Where NCAK : Non Clustered, Unique, AccountHeader : Table and OrganisationID_NextDate : Columns.
