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Modified tema-3.md

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Nicolás A. Ortega Froysa 2021-09-27 20:51:24 +02:00
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@ -57,3 +57,8 @@ Se divide en cuatro sublenguajes:
- Data Definition Language - Data Definition Language
- DCL - DCL
- TCL - TCL
## Proceso de Diseño de una Base de Datos
1. Se realiza el modelo conceptual (Diagramas E/R)
2. Se transforma el modelo conceptual en lógico (Modelo Relacional)
3. Se pasa del modelo lógico al físico (DDL SQL)