Escrito por Escrito por Anastasia Kovba
1. This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasi-relational database management system, System R, which a group at IBM San Jose Research Laboratory had developed during the 1970s.
2. SQL is a programming language designed for managing data in relational database management systems (RDBMS).
3. The first Relational Database Management System (RDBMS) was RDMS, developed at MIT in the early 1970s, soon followed by Ingres, developed in 1974 at U.C. Berkeley.
4. Originally based upon relational algebra and tuple relational calculus, its scope includes data insert, query, update and delete, schema creation and modification, and data access control.
5. After testing SQL at customer test sites to determine the usefulness and practicality of the system, IBM began developing commercial products based on their System R prototype including System/38, SQL/DS, and DB2, which were commercially available in 1979, 1981, and 1983, respectively.
6. Despite not adhering to the relational model as described by Codd, it became the most widely used database language.
7. Codd's relational model, as described in his influential 1970 paper, "A Relational Model of Data for Large Shared Data Banks".
8. Programming language is a perfect tool for studying, complex mathematical calculation, entertainment and many other useful tasks.
9. SQL programming language for iPad, iPhone and iPod touch based on SQLite engine.
10. Ingres implemented a query language known as QUEL, which was later supplanted in the marketplace by SQL.
11. However, issues of SQL code portability between major RDBMS products still exist due to lack of full compliance with, or different interpretations of, the standard.
Verificar aplicaciones o alternativas de PC compatibles
Aplicación | Descargar | Calificación | Desarrollador |
---|---|---|---|
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Obtener aplicación o alternativas ↲ | 3 3.67
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Anastasia Kovba |
O siga la guía a continuación para usar en PC :
Elija la versión de su PC:
Requisitos de instalación del software:
Disponible para descarga directa. Descargar a continuación:
Ahora, abra la aplicación Emulator que ha instalado y busque su barra de búsqueda. Una vez que lo encontraste, escribe SQL Programming Language en la barra de búsqueda y presione Buscar. Haga clic en SQL Programming Languageicono de la aplicación. Una ventana de SQL Programming Language en Play Store o la tienda de aplicaciones se abrirá y mostrará Store en su aplicación de emulador. Ahora, presione el botón Instalar y, como en un iPhone o dispositivo Android, su aplicación comenzará a descargarse. Ahora hemos terminado.
Verá un ícono llamado "Todas las aplicaciones".
Haga clic en él y lo llevará a una página que contiene todas sus aplicaciones instaladas.
Deberías ver el icono. Haga clic en él y comience a usar la aplicación.
Obtén un APK compatible para PC
Descargar | Desarrollador | Calificación | Versión actual |
---|---|---|---|
Descargar APK para PC » | Anastasia Kovba | 3.67 | 13.0 |
Descargar SQL Programming Language para Mac OS (Apple)
Descargar | Desarrollador | Reseñas | Calificación |
---|---|---|---|
Free para Mac OS | Anastasia Kovba | 3 | 3.67 |
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