they are just used to speed up searches/queries. Note: Updating a table with indexes takes more time than updating a table without (because the indexes also need an update). So, only create indexes on ...

When generating a diff changelog with liquibase, the output generation of unique constraints contains "USING INDEX" for a h2 database output sql file when the reference database was a oracle database.

is the name for the constraint being specified. 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 ...