# SQL Server Name Convention


## SQL Server Object Name
| Object                        | Code | Notation   | Length | Plural | Prefix | Suffix | Abbreviation | Char Mask    | Example                            |
| ----------------------------- | ---- | ---------- | ------ | ------ | ------ | ------ | ------------ | ------------ | --------------------------------   |
| Database                      |      | UPPERCASE  |     30 | No     | No     | No     | Yes          | [A-z]        | MYDATABASE                         |
| Database Trigger              |      | PascalCase |    128 | No     | DTR_   | No     | Yes          | [A-z]        | DTR_CheckLogin                     |
| Schema                        |      | lowercase  |     30 | No     | No     | No     | Yes          | [A-z][0-9]   | myschema                           |
| File Table                    |      | PascalCase |    128 | No     | FT_    | No     | Yes          | [A-z][0-9]   | FT_MyTable                         |
| Global Temporary Table        |      | PascalCase |    118 | No     | No     | No     | Yes          | ##[A-z][0-9] | ##MyTable                          |
| Local Temporary Table         |      | PascalCase |    118 | No     | No     | No     | Yes          | #[A-z][0-9]  | #MyTable                           |
| Table                         | U    | PascalCase |     30 | No     | No     | No     | Yes          | [A-z][0-9]   | MyTable                            |
| Table Column                  |      | PascalCase |     30 | No     | No     | No     | Yes          | [A-z][0-9]   | MyColumn                           |
| Table Default Values          | D    | PascalCase |    128 | No     | DF_    | No     | Yes          | [A-z][0-9]   | DF_MyTable_MyColumn                |
| Table Check Column Constraint | C    | PascalCase |    128 | No     | CK_    | No     | Yes          | [A-z][0-9]   | CK_MyTable_MyColumn                |
| Table Check Table Constraint  | C    | PascalCase |    128 | No     | CTK_   | No     | Yes          | [A-z][0-9]   | CTK_MyTable_MyColumn_AnotherColumn |
| Table Primary Key             | PK   | PascalCase |    128 | No     | PK_    | No     | Yes          | [A-z][0-9]   | PK_MyTableID                       |
| Table Alternative Key         | UQ   | PascalCase |    128 | No     | AK_    | No     | Yes          | [A-z][0-9]   | AK_MyTable_MyColumn_AnotherColumn  |
| Table Foreign Key             | F    | PascalCase |    128 | No     | FK_    | No     | Yes          | [A-z][0-9]   | FK_MyTable_ForeignTableID          |
| Table Clustered Index         |      | PascalCase |    128 | No     | IXC_   | No     | Yes          | [A-z][0-9]   | IXC_MyTable_MyColumn_AnotherColumn |
| Table Non Clustered Index     |      | PascalCase |    128 | No     | IX_    | No     | Yes          | [A-z][0-9]   | IX_MyTable_MyColumn_AnotherColumn  |
| Table Trigger                 | TR   | PascalCase |    128 | No     | TR_    | No     | Yes          | [A-z][0-9]   | TR_MyTable_LogicalName             |
| View                          | V    | PascalCase |    128 | No     | VI_    | No     | No           | [A-z][0-9]   | VI_LogicalName                     |
| Stored Procedure              | P    | PascalCase |    128 | No     | usp_   | No     | No           | [A-z][0-9]   | usp_LogicalName                    |
| User-Defined Functions        | FN   | PascalCase |    128 | No     | udf_   | No     | No           | [A-z][0-9]   | udf_LogicalName                    |
| Synonim                       | SN   | camelCase  |    128 | No     | sy_    | No     | No           | [A-z][0-9]   | sy_logicalName                     |
| Sequence                      | SO   | PascalCase |    128 | No     | sq_    | No     | No           | [A-z][0-9]   | sq_TableName                       |
| CLR Assembley                 |      | PascalCase |    128 | No     | CA     | No     | Yes          | [A-z][0-9]   | CALogicalName                    |
| CLR Stored Procedures         | PC   | PascalCase |    128 | No     | pc_    | No     | Yes          | [A-z][0-9]   | pc_CAName_LogicalName              |

                                                                           
## Offical Reference
 - [Database object TECHNET] (Limitations)
 - [User-Defined Functions MSDN]
 - [Synonim TECHNET]
 - [Primary and Foreign Key Constraints MSDN]
 - [sys.objects MSDN]
 - [Constraints TECHNET]
 - [CHECK Constraint TECHNET]
 - [SQL Server CLR Integration MSDN]
 - [CLR Databse Objects MSDN] 
 
[Database object TECHNET]:http://technet.microsoft.com/en-us/library/ms172451%28v=sql.110%29.aspx
[User-Defined Functions MSDN]:http://msdn.microsoft.com/en-us/library/ms191007.aspx
[Synonim TECHNET]:http://technet.microsoft.com/en-us/library/ms187552(v=sql.110).aspx
[Primary and Foreign Key Constraints MSDN]:http://msdn.microsoft.com/en-us/library/ms179610.aspx
[sys.objects MSDN]:http://msdn.microsoft.com/en-us/library/ms190324.aspx
[Constraints TECHNET]:http://technet.microsoft.com/en-us/library/ms189862%28v=sql.105%29.aspx
[CHECK Constraint TECHNET]:http://technet.microsoft.com/en-us/library/ms188258%28v=sql.105%29.aspx
[SQL Server CLR Integration MSDN]:http://msdn.microsoft.com/en-us/library/ms254498%28v=vs.110%29.aspx
[CLR Databse Objects MSDN]:http://msdn.microsoft.com/en-us/library/ms345099%28SQL.100%29.aspx
[CLR Stored Procedures]:http://msdn.microsoft.com/en-us/library/ms131094%28v=sql.100%29.aspx