SQL CON EJEMPLOS

SQL CON EJEMPLOS PowerPoint PPT Presentation


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SQL. Como DDL nos permite Crear y borrar tablas y relaciones (mediante CREATE, DROP y ALTER). Como DML estn SELECT (seleccin registros), UPDATE (actualizar registros), DELETE (borrar registros) e INSERT (aadir registros). Sirve para que consultemos y modifiquemos los datos.Como Lenguaje de Cont

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SQL CON EJEMPLOS

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