Data access object computer (3 résultats)

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Data transferobject (DTO), formerly known as value objects or VO, is a design patternused to transfer data between software application subsystems. DTOs areoften used in conjunction with data access objects to retrieve data froma database.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. High QualityContent by WIKIPEDIA articles! In computer software, a data accessobject (DAO) is an object that provides an abstract interface to sometype of database or persistence mechanism, providing some specificoperations without exposing details of the database. It provides amapping from application calls to the persistence layer. This isolationseparates the concerns of what data accesses the application needs, interms of domain-specific objects and data types (the public interface ofthe DAO), and how these needs can be satisfied with a specific DBMSdatabase schema, etc. (the implementation of the DAO). This designpattern is equally applicable to most programming languages, most typesof software with persistence needs and most types of database, but it istraditionally associated with Java EE applications and with relationaldatabases accessed via the JDBC API because of its origin in SunMicrosystems' best practice guidelines ('Core J2EE Patterns') for thatplatform.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Data AccessObjects is a general programming interface for database access onMicrosoft Windows systems. It is unrelated to the Data access objectdesign pattern used in object-oriented software design. DAO wereoriginally called VT Objects. DAO 1.0 came up in November 1992. Inversion 3.5 it was able to bypass the Jet engine altogether and directlyaccess ODBC data sources, including Microsoft SQL Server and otherenterprise database systems. DAO 3.6 was the final version developed byMicrosoft. Microsoft says that DAO will not be available in its future64-bit operating systems.DAO works by creating a 'Workspace' object inwhich all database operations are performed. The workspace object existsas a session object that exists within a larger database engine object.There are two types of database engines: a Jet database engine objectand an ODBCDirect database engine.…