To add an index in SQL Server use the CREATE INDEX statements. When adding indexes remember there can only be one clustered index per table. The main options when creating an index are clutered or nonclustered or unique vs non unique. Using SQL 2005+ you can also specify columns to include at the leaf level of the index. Create a single nonclustered index [cc lang=”sql”] CREATE UNIQUE NONCLUSTERED INDEX IX_NC_PresidentNumber — specify index name ON dbo.Presidents (PresidentNumber) — specify table and column name [/cc] Create a multi-column (composite) nonclustered index [cc lang=”sql”] CREATE UNIQUE NONCLUSTERED INDEX IX_NC_PresidentNumber_PresidentName — specify index name ON dbo.Presidents (PresidentNumber,PresidentName) — specify table and column names [/cc] Create a multi-column (composite) clustered index [cc lang=”sql”] CREATE UNIQUE CLUSTERED INDEX IX_C_PresidentNumber — specify index name ON dbo.Presidents (PresidentNumber,PresidentName) — specify table and column names [/cc] Create a non clustered index with included columns [cc lang=”sql”] CREATE NONCLUSTERED INDEX IX_NC_PresidentNumber — specify index name ON dbo.Presidents (PresidentNumber) — specify table and column name INCLUDE (President,YearsInOffice,RatingPoints) — specify included columns [/cc] Create index with fill factor [cc lang=”sql”] CREATE NONCLUSTERED INDEX IX_NC_PresidentNumber — specify index name ON dbo.Presidents (PresidentNumber) — specify table and column name WITH (FILLFACTOR = 80) — specify the fill factor [/cc] SQL Server 2008 options SQL Server 2008 provides additional index options. Most notably it provides the ability to filter an index. This can help decrease the size of the index for very large or partitioned table to only include the records that are normally … Continue reading Create Index Syntax