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In software, a data access object (DAO) is a pattern that provides an abstract interface to some type of database or other persistence mechanism. By mapping application calls to the persistence layer, the DAO provides data operations without exposing database details. This isolation supports the single responsibility principle.
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For example, the DAL might return a reference to an object (in terms of object-oriented programming) complete with its attributes instead of a row of fields from a database table. This allows the client (or user) modules to be created with a higher level of abstraction. This kind of model could be implemented by creating a class of data access ...
Classes may inherit from other classes, so they are arranged in a hierarchy that represents "is-a-type-of" relationships. For example, class Employee might inherit from class Person. All the data and methods available to the parent class also appear in the child class with the same names.
Three of the officers involved in a fatal beating of Robert Brooks, a handcuffed inmate at the Marcy Correctional Facility upstate New York, were previously accused of abuse and assault, according ...
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OG Maco, the Atlanta rapper best known for his 2014 hit “U Guessed It,” died at the age of 32. The musician, born Benedict Chiajulam Ihesiba Jr., was admitted to a Los Angeles hospital on Dec ...
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