A FOREIGN KEY is a key used to link two tables together. Column Naming Conventions:-----1. Alternatively I am ready to be convinced my database design or naming convention is wrong and I do not need column renaming (or it can be done some other way) My use cases: 1) Cosmetic reasons: Setting foreign key column name to singular (e.g. SELECT a.activity_name FROM activity a) prevents naming a column the same name as the table e.g. However, your DBA may ask you to use a specific naming convention. I've also seen some primary key and unique constraint naming conventions add other attributes like "cli" or "nci" to denote clustered/nonclustered. Single column. The names of the foreign keys in the generated schema do not reflect the property names. Some others prefer option 2 where you name the primary key prefixed with the table name so that the column name is the same throughout the database. How I would approach Hanks problem is that I would find the unique set of foreign keys currently existing regardless of name, and create a script using the naming convention I presented above. However, consistency is really the key here. Welcome to the website of Narayana Vyas Kondreddi. This site features some great SQL Server, Visual Basic, ASP resources. Do define foreign key on database schema. I think that naming the foreign key EmployeeID (or Employee_ID might be better) tells the reader that it is the ID column of the Employee Table. Under review. I read that this is good: FK_TargetTable_SourceTable. This is a personal website, with some technical stuff which you will find useful. Foreign Key Constraint. Where nnnn = The table name that the index is built on. For foreign key columns: Are they called book_id, bookID, etc? The following convention strips the ‘_’ character out of the column name that is generated for the IA. Entity Framework allows to set the name of a table or a column … By leaving the table name off the primary key name, and just using id, makes it more obvious that it is a primary key (plus it seems redundant to prefix the primary key name with its own table name!). Entity Developer - EF Code First DbContext Template - blog When EF generates an IA, it creates a column named EntityType_KeyName. PK2_ColumnName Foreign Key Convention . Foreign Key : APFU_APPL_FK The foreign key column on the dependant table may be named using the full table name or the alias, along with the column name such that: ... Primary key constraints will follow this naming convention: PK_nnnnn. The FOREIGN KEY constraint is a key used to link two tables together. It uses the information available in the POCO Classes to determine and infer the schema of the database that these classes are mapped to. For example, if you choose uppercase names for tables, then key columns and all other items should also be uppercase. Now it looks like: FK_dbo.City_dbo.CityType_City_CityTypeId but I would like it to be called City_FKC_CityType. Try to put all foreign key columns just after the primary key column, mostly because of human factor. If no navigation property is defined on the dependent entity, Code First will use [Principal Type Name] + [Primary Key Name]. Other tables containing this as a foreign key would omit the _PK so In a database where all primary keys are called Id, as soon as you look at the table you know exactly which column is the primary key. I think a good first step already would be to allow foreign keys with a different column name that the one it's pointing to. Naming Convention Template (Primary Key, Foreign Key, Index Names etc) ... Having the same problem with random names for dozens of foreign keys. OTOH, column names allows the constraint name to be more self-describing. You might recall that the convention for naming the foreign key column was [Navigation Property Name] + [Primary Key Name]. Primary key in Customers table: PK_CustomerID. It would be very rare to have a join such as project.id = task.id, it is usually a mistake to join tables on their primary key - so using just 'id' as the PRIMARY KEY name is a bonus. Primary Key Fields - indicate by appending _pk. Foreign Keys are usually named using the two table aliases, from and to, with the suffix of '_FK': Relationship: APPLICATION_FUNCTIONS -> APPLICATIONS Foreign Key : APFU_APPL_FK. sql column name rules (1) We have our own external convention of naming objects and I need to change the naming convention for the auto generated foreign key constraints. The first glance gives nice overview how many and which tables are referenced. Id _ < SourceTable > '' I need some advice on foreign key naming?. The community still appeared him, that they was shops who are labels example the! 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