Which object types can be migrated using SQL Developer?

SQL Developer is a tool designed to facilitate the migration of various database objects from one environment to another, such as from a legacy system to Oracle databases. When considering the types of objects that can be migrated using SQL Developer, it encompasses a comprehensive range of elements that are integral to most database applications.

When reviewing the options, it is clear that SQL Developer supports migrating tables, which are the fundamental unit of data storage in a database. Tables contain rows and columns and are critical for data organization.

Moreover, views, which are virtual tables based on result sets from one or more tables, are also supported for migration. They allow users to simplify complex queries and manage data access.

Indexes, which are used to enhance the performance of database queries by providing quick lookups on data, can likewise be migrated using SQL Developer. The migration of indexes ensures that the performance characteristics of the database are preserved in the new environment.

Thus, the correct answer encompasses all the mentioned objects—tables, views, and indexes—allowing for a complete and efficient migration process. This capability is particularly essential in maintaining the integrity and performance of databases following migration.