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Base de D ados

Base de D ados. Conjunto de información del mismo contexto y organizada. Ejemplos: Bibliotecas. Directorios. SGDB. Concepto. Abstracción de la información. Independencia. Consistencia. Seguridad . Manejo de Transacciones . Tiempo de respuesta. SGDB.

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Base de D ados

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  1. Base de Dados

  2. Conjunto de información del mismo contexto y organizada. Ejemplos: • Bibliotecas. • Directorios. • SGDB Concepto

  3. Abstracción de la información. • Independencia. • Consistencia. • Seguridad. • Manejo de Transacciones. • Tiempo de respuesta. SGDB

  4. CREATE TABLE… (… , CHECK(…),… NOT NULL,… DEFAULT ‘…’); • INSERT INTO… VALUE(); • UPDATE… SET…; • DROP TABLE; • DELETE FROM… WHERE…; • SELECT… FROM… WHERE… BETWEEN… OR/AND… ORDER BY …; SQL(StructuredQueryLanguage)

  5. int, smallint, real, double precision, char(N), varchar(N), date, time, timestamp, interval Tipos de Datos

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