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| Ans. DAO is Data Access Object which is used within Persistence Layer to make Database Transaction. For example , the class holding the Database connection and CRUD methods. | ||||
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 Related Questions | ||||
 Is it a Good practice to have application decision making in DAOs ? | ||||
| How one dao Implementation object (singleton) can handle multiple requests? | ||||
| In Case of multi layered application, If DAO layer throws an exception , How will you handle it upstream ? | ||||
