How do you integrate multiple databases?

How do I integrate multiple databases into one?

Merge Multiple Databases into a Single Database1Create several smaller databases containing the core data tables.2Merge the smaller databases into a single larger database.3Build the schema/add the relevant constraints.Merge Multiple Databases into a Single Database - Stack Overflow

Is it possible to connect to multiple databases?

Being able to connect to multiple database instances simultaneously offers many benefits, from being able to query multiple instances using the same SELECT statement, to easier migration. In fact, we explored How to Query across Multiple Databases in the previous tip.

What is database integration?

Database integration is the process used to aggregate information from multiple sources—like social media, sensor data from IoT, data warehouses, customer transactions, and more—and share a current, clean version of it across an organization.

How do I extract data from multiple databases?

The easiest way to get data from multiple servers is linking them, querying the data from each table using the fully qualified table name, i.e. Server. Database. Schema. Table , and make the union of all.