Can a project have multiple databases?

Can we use two databases in single project?

Generally, if one project consumes multiple databases, it is because it must consume different, often legacy sources of information that originated outside of this particular project. This is most common in Enterprise environments.

Is it okay to use multiple databases?

Good reasons to create separate databases would be to support different availability requirements or simplify administration. For example if your databases require very different backup schedules or different recovery models. Another reason would be if you may want to run them on different instances.

Can a schema have multiple databases?

In the Oracle database system, the term database schema, which is also known as "SQL schema," has a different meaning. Here, a database can have multiple schemas (or “schemata,” if you're feeling fancy). Each one contains all the objects created by a specific database user.

Is it better to have one database or multiple databases?

it is better to use different database for each client. Maintaining multiple databases is difficult. For example if we want to modify a table then we should do changes in all databases. Grouping of data into multiple databases each with a significantly fewer number of tables.