DAO not only has the capability of accessing database, but also can operate and define the database, for example, setting up database, table, field and index.

DAO不仅具有对数据库访问的能力，而且能对数据库进行操作和定义，如创建数据库、创建表、创建域和创建索引。

youdao

The uncollected bills got so bad that managers at MCI, WorldCom, Sprint and elsewhere discussed setting up a database to track offenders.

FORBES: Ring of Thieves

Setting up redundant servers for static HTML files is easy, but a database replication in a complex database-backed application is another.

FORBES: What You Need to Know About NoSQL Databases