The term Data Access Object (DAO) is actually wrong. An object has state and behavior, and the behavior even can depend on the state. DAO is stateless, only only consists of data manipulation operations. Data Access Procedure (DAP) would be a more exact term.
In real projects, however, you will get likely some reusable queries, which should be maintained in a central place. In that case it is absolutely worth to introduce a DAO.
In real projects, however, you will get likely some reusable queries, which should be maintained in a central place. In that case it is absolutely worth to introduce a DAO.
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