# Database Performance



# SQL Server - Performance / Index

Help about order by index:

[https://www.mssqltips.com/sqlservertip/1337/building-sql-server-indexes-in-ascending-vs-descending-order/](https://www.mssqltips.com/sqlservertip/1337/building-sql-server-indexes-in-ascending-vs-descending-order/)

Nonclustered Indexa

[https://learn.microsoft.com/en-us/sql/relational-databases/indexes/create-nonclustered-indexes?view=sql-server-ver16](https://learn.microsoft.com/en-us/sql/relational-databases/indexes/create-nonclustered-indexes?view=sql-server-ver16)