What is the MySQL equivalent of a PostgreSQL 'schema'?

I have a PostgreSQL database whose tables are divided amongst a number of schemas. Each schema has a different set of access controls; for example, one schema might be read-only to regular users, while they are allowed to create tables on another. Schemas also act as namespaces, so users don't have to worry about duplicating existing tables when they create new ones.

I want to create a si开发者_如何学运维milar setup using MySQL. Does it have an equivalent concept? If not, how can I most closely simulate it? I would prefer not to use multiple databases.

Database should be the closest one.

Prefixing table names is what's done with most MySQL-driven apps.