Descripción:
PostgreSQL es un sistema de gestión de bases de datos objeto-relacional, distribuido bajo licencia BSD y con su código fuente disponible libremente. Es el sistema de gestión de bases de datos de código abierto más potente del mercado y en sus últimas versiones no tiene nada que envidiarle a otras bases de datos comerciales. PostgreSQL utiliza un modelo cliente/servidor y usa multiprocesos en vez de multihilos para garantizar la estabilidad del sistema. Un fallo en uno de los procesos no afectará el resto y el sistema continuará funcionando. Puede ser usado, modificado y distribuido por cualquiera, libre de costo, para cualquier propósito privado, comercial o académico.
Objetivo:
Al finalizar el Curso de Introducción a SQL con PostgreSQL, entre otras cosas, el asistente será capaz de: Conectarse a una base de datos PostgreSQL usando un cliente gráfico. Moverse con familiaridad en la interfaz gráfica de un cliente gráfico. Construir consultas SELECT utilizando las palabras reservadas. Definir una lista de campos a recuperar de una o varias tablas de cualquier base de datos. Construir condiciones de búsqueda usando las palabras reservadas. Guardar en un archivo CSV los registros recuperados con la consulta. Etc.
Dirigido a: Al público en general interesado en el aprovechamiento y explotación de la información contenida en una base de datos relacional. No se presuponen conocimientos previos de SQL..
Requisitos: Conocimiento funcional del manejo de los sistema operativos MS Windows o Linux (Linux preferentemente, mas no indispensable.).
Temario:
Interfaz gráfica de pgAdmin4 | Conexión a una base de datos PostgreSQL | Sentencias SELECT, estructura general: SELECT, FROM, WHERE | Construir condiciones de búsqueda usando las palabras reservadas: BETWEEN, LIKE, ILIKE IN, NOT, IN, ISNULL, AND, OR, SUBSTR | Tablas combinadas: JOIN | Agrupamientos: GROUP BY | Funciones de agregación | Ordenando los registros recuperados: ORDER BY | Guardar en un archivo CSV los registros recuperados con la consulta | Sentencia INSERT | Sentencia UPDATE | Sentencia DELETE
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