Lesson 1: Converting a Table to a Hierarchical Structure
Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
Customers who have tables using self joins to express hierarchical relationships can convert their tables to a hierarchical structure using this lesson as a guide. It is relatively easy to migrate from this representation to one using hierarchyid. After migration, users will have a compact and easy to understand hierarchical representation, which can be indexed in several ways for efficient queries.
This lesson, examines an existing table, creates a new table containing a hierarchyid column, populates the table with the data from the source table, and then demonstrates three indexing strategies. This lesson contains the following topics: