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| bd [2026/10/21 18:24] – alyssa | bd [2026/10/28 19:11] (current) – alyssa | ||
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| ====== Bases de Datos ====== | ====== Bases de Datos ====== | ||
| + | Mis bases tienen datos | ||
| + | |||
| + | ===== Conceptos ===== | ||
| + | * Esquema Logico: Define la estructura en la que se almacenan e interactuan entre si los datos. | ||
| + | * Tamaño de Bloque: Cantidad de disco que lee una base de datos a la vez. | ||
| ===== DDL/Data Definition Language ===== | ===== DDL/Data Definition Language ===== | ||
| + | [[bd: | ||
| + | Permite definir la estructura en la que se van a almacenar los datos. | ||
| * CREATE | * CREATE | ||
| * ALTER | * ALTER | ||
| * DROP | * DROP | ||
| - | * GRANT | ||
| - | * REVOKE | ||
| ===== DML/Data Manipulation Language ===== | ===== DML/Data Manipulation Language ===== | ||
| + | [[bd: | ||
| + | Permite la insercion, manipulacion y consulta de datos | ||
| * SELECT | * SELECT | ||
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| * UPDATE | * UPDATE | ||
| * DELETE | * DELETE | ||
| + | |||
| + | ===== DCL/Data Control Language ===== | ||
| + | [[bd: | ||
| + | |||
| + | Permite controlar el acceso a los datos. | ||
| + | |||
| + | * GRANT | ||
| + | * REVOKE | ||
| + | |||
| + | |||
bd.1792599882.txt.gz · Last modified: by alyssa