To change a rowstore table to a columnstore table, drop all existing indexes on the table and create a clustered columnstore index. For an example, see CREATE COLUMNSTORE INDEX (Transact-SQL).

Learn how to create a clustered index in SQL using the CREATE INDEX statement or a constraint, and some best practices and tips to optimize your index design.

Creates a relational index on a table or view. Also called a rowstore index because it is either a clustered or nonclustered B-tree index. You can create a rowstore index before there is data in the ...

Creates indexes on columns in tables. Restriction: You cannot use CREATE INDEX on a table accessed via an engine that does not support UPDATE processing. an IN subquery where the column in the inner ...

Learn what a spatial index is, why it is useful, and how to create one in SQL for geographic data. Get tips and best practices for spatial indexing in SQL.

How to Create a Table From Query Results in Microsoft SQL. If your business uses relational databases to store data, you may have used a SQL SELECT clause to create new tables from query results.

How to Reindex SQL Tables. The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, locating a single record in a large table can ...

The first form of the CREATE TABLE statement creates tables that automatically map SQL data types to those supported by the SAS System. Use this form when you want to create a new table with columns ...