{"id":11176,"date":"2026-04-10T10:56:02","date_gmt":"2026-04-10T08:56:02","guid":{"rendered":"https:\/\/avila.datasystem.es\/?p=11176"},"modified":"2026-04-10T17:21:10","modified_gmt":"2026-04-10T15:21:10","slug":"mysql-para-principiantes-2","status":"publish","type":"post","link":"https:\/\/avila.datasystem.es\/en\/mysql-para-principiantes-2\/","title":{"rendered":"MYSQL para principiantes"},"content":{"rendered":"<p class=\"wp-block-paragraph\">MySQL es uno de los sistemas de gesti\u00f3n de bases de datos m\u00e1s utilizados del mundo, presente en miles de aplicaciones web, desde blogs hasta grandes plataformas digitales. En esta gu\u00eda de MySQL para principiantes aprender\u00e1s desde cero c\u00f3mo funciona una base de datos, c\u00f3mo instalarlo y c\u00f3mo ejecutar tus primeras consultas paso a paso, sin necesidad de experiencia previa.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"439\" src=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-19-1024x439.png\" alt=\"Mysql para principiantes\" class=\"wp-image-7902\" srcset=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-19-1024x439.png 1024w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-19-300x129.png 300w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-19-768x329.png 768w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-19-18x8.png 18w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-19.png 1120w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 style=\"font-family: 'Arial Black'; font-size: 30px;\">1.CREAR UNA BASE DE DATOS<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 Antes de aprender MySQL, es importante entender c\u00f3mo funciona el\u00a0<a href=\"https:\/\/learnsql.es\/blog\/terminos-de-sql-que-los-principiantes-deben-conocer\/\">lenguaje SQL b\u00e1sico<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-que-es-mysql-y-para-que-sirve\">\ud83e\udde9 \u00bfQu\u00e9 es MySQL y para qu\u00e9 sirve?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">MySQL es un sistema de gesti\u00f3n de bases de datos relacional (RDBMS) que permite almacenar, organizar y consultar informaci\u00f3n de forma eficiente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Se utiliza en:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u00e1ginas web (WordPress, tiendas online)<\/li>\n\n\n\n<li>Aplicaciones m\u00f3viles<\/li>\n\n\n\n<li>Sistemas empresariales<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 B\u00e1sicamente: <strong>guarda datos y te permite consultarlos con SQL<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Haz clic <a href=\"https:\/\/avila.datasystem.es\/en\/mysql-para-principiantes-guia\/\">aqu\u00ed<\/a> para ver Tutorial de SQL para principiantes<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-como-funciona-mysql\">\u2699\ufe0f C\u00f3mo funciona MySQL<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">MySQL funciona con una arquitectura cliente-servidor:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>El usuario env\u00eda una consulta SQL<\/li>\n\n\n\n<li>El servidor procesa los datos<\/li>\n\n\n\n<li>Devuelve el resultado<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-primeros-pasos-en-mysql\">\ud83d\udee0\ufe0f Primeros pasos en MySQL<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para este tutorial, vamos a utilizar XAMPP, aunque es valida cualquier otro gestor de BBDD.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"668\" height=\"434\" src=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/XAMPP_Windows_10-1.png\" alt=\"\" class=\"wp-image-7904 size-full\" srcset=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/XAMPP_Windows_10-1.png 668w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/XAMPP_Windows_10-1-300x195.png 300w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/XAMPP_Windows_10-1-18x12.png 18w\" sizes=\"auto, (max-width: 668px) 100vw, 668px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\">Al acceder a la terminal, activamos los servicios de Mysql y apache del XAMP, as\u00ed accederemos a la terminal, donde debemos ejecutar mysql -u root<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Al crear una base de datos y ver las ya existentes debemos seguir los siguientes pasos:<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"665\" height=\"512\" src=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/1661681434724.png\" alt=\"\" class=\"wp-image-7905 size-full\" srcset=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/1661681434724.png 665w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/1661681434724-300x231.png 300w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/1661681434724-16x12.png 16w\" sizes=\"auto, (max-width: 665px) 100vw, 665px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\">create database nombre_bbdd;<br>show databases;<\/p>\n<\/div><\/div>\n\n\n\n<h2 style=\"font-family: 'Arial Black'; font-size: 30px;\">2. CREAR TABLAS<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para crear tablas en mysql seguiremos la siguiente estrucutra base:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE TABLE estudiantes (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    nombre VARCHAR(50) NOT NULL,\n    edad INT,\n    email VARCHAR(100) UNIQUE\n);<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Par\u00e1metros a tener en cuenta:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tipo de valor recogido: en caso de ser un numero entero usamos <strong>int<\/strong>, en caso de valores alfanum\u00e9ricos usamos <strong>varchar<\/strong>&#8230;<\/li>\n\n\n\n<li><strong>not null <\/strong>proh\u00edbe un campo vac\u00edo<\/li>\n\n\n\n<li><strong>unique <\/strong>restringe la repetici\u00f3n de datos, muy \u00fatil para evitar redundancia.<\/li>\n\n\n\n<li><strong>primary key<\/strong> es aquel dato de la tabla que mas identifica a cada estudiante en este caso, tampoco se puede repetir y nos permite enlazar con otras tablas.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"309\" src=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/6bd4a-how2bto2bcreate2btable2bin2bmysql2busing2bcmd_3-1.webp\" alt=\"MySQL para principiantes\" class=\"wp-image-7907\" srcset=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/6bd4a-how2bto2bcreate2btable2bin2bmysql2busing2bcmd_3-1.webp 640w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/6bd4a-how2bto2bcreate2btable2bin2bmysql2busing2bcmd_3-1-300x145.webp 300w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/6bd4a-how2bto2bcreate2btable2bin2bmysql2busing2bcmd_3-1-18x9.webp 18w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n<\/div>\n\n\n<h2 style=\"font-family: 'Arial Black'; font-size: 30px;\">3. INSERTAR DATOS<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>INSERT INTO estudiantes (nombre, edad, email)  VALUES  \n    ('Carlos', 25, 'carlos@email.com'),  \n    ('Mar\u00eda', 21, 'maria@email.com'),  \n    ('Jos\u00e9', 23, 'jose@email.com');<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-21-1024x576.png\" alt=\"MySQL para principiantes\" class=\"wp-image-7909\" style=\"width:720px;height:auto\" srcset=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-21-1024x576.png 1024w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-21-300x169.png 300w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-21-768x432.png 768w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-21-18x10.png 18w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-21.png 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">En el caso de insertar valores debemos tener en cuenta varios aspectos.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Para a\u00f1adir valores seguimos la siguiente estructura: insert into nombre_tabla values (&#8230;);<\/li>\n\n\n\n<li>No podemos a\u00f1adir valores a una columna auto incrementable como el id.<\/li>\n\n\n\n<li>Los valores con varchar van entre comillas.<\/li>\n<\/ul>\n\n\n\n<h2 style=\"font-family: 'Arial Black'; font-size: 30px;\">4. MODIFICAR DATOS<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>UPDATE estudiantes  \nSET edad = 23, email = 'lucia.nueva@email.com'  \nWHERE nombre = 'Luc\u00eda';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Al igual que al insertar datos, para actualizarlos tambi\u00e9n debemos seguir la siguiente estructura: update nombre_tabla set parametro_a_cambiar = nuevo_datos where=donde_lo_cambiamos<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"267\" src=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-20.png\" alt=\"MySQL para principiantes\" class=\"wp-image-7908\" srcset=\"https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-20.png 1024w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-20-300x78.png 300w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-20-768x200.png 768w, https:\/\/avila.datasystem.es\/wp-content\/uploads\/2025\/04\/image-20-18x5.png 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 style=\"font-family: 'Arial Black'; font-size: 30px;\">5. ELIMINAR DATOS<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>DELETE FROM estudiantes  \nWHERE nombre = 'Luc\u00eda';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">As\u00ed ser\u00eda en el caso de borrar datos espec\u00edficos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En el caso de borrar  la tabla entera \u00fanicamente ejecutamos <strong>drop table;<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-consultas-basicas-sql-imprescindible\">\ud83d\udd0d Consultas b\u00e1sicas (SQL imprescindible)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SELECT \u2192 obtener datos<\/li>\n\n\n\n<li>INSERT \u2192 a\u00f1adir datos<\/li>\n\n\n\n<li>UPDATE \u2192 modificar<\/li>\n\n\n\n<li>DELETE \u2192 eliminar<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Estas consultas son la base para trabajar con bases de datos relacionales.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-relaciones-entre-tablas-join\">\ud83d\udd17Relaciones entre tablas (JOIN)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Una de las funciones m\u00e1s potentes de MySQL es combinar datos entre tablas mediante JOIN.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-consejos-para-aprender-mysql-desde-cero-y-rapido\">Consejos para aprender MySQL desde cero y r\u00e1pido<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Practica con ejemplos reales<\/li>\n\n\n\n<li>Usa herramientas como phpMyAdmin<\/li>\n\n\n\n<li>Aprende SQL paso a paso<\/li>\n\n\n\n<li>Haz proyectos peque\u00f1os<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusi\u00f3n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aprender MySQL es una habilidad clave si quieres trabajar en desarrollo web, an\u00e1lisis de datos o backend. Con pr\u00e1ctica constante, podr\u00e1s dominar consultas complejas y gestionar grandes vol\u00famenes de informaci\u00f3n. Si con est\u00e1 gu\u00eda de mysql para principiantes sigues teniendo dudas, aqu\u00ed te dejo un v\u00eddeo para mayor aprendizaje.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Curso Completo de Bases de Datos con MySQL (Principiantes)\" width=\"900\" height=\"506\" src=\"https:\/\/www.youtube.com\/embed\/_8MjEhfKRbI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"h-preguntas-frecuentes\">\u2753 Preguntas frecuentes<\/h3>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1775827805661\"><strong class=\"schema-faq-question\">\u00bfEs dif\u00edcil aprender MySQL?<\/strong> <p class=\"schema-faq-answer\">No, es uno de los sistemas m\u00e1s f\u00e1ciles para empezar.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1775827765492\"><strong class=\"schema-faq-question\">\u00bfQu\u00e9 necesito para aprender MySQL?<\/strong> <p class=\"schema-faq-answer\">Solo un ordenador y conocimientos b\u00e1sicos de inform\u00e1tica.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1775827820390\"><strong class=\"schema-faq-question\">\u00bfMySQL sigue siendo relevante en 2026?<\/strong> <p class=\"schema-faq-answer\">S\u00ed, sigue siendo una de las bases de datos m\u00e1s usadas.<\/p> <\/div> <\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>\u00a9 2026 MySQL para principiantes. Todos los derechos reservados.<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>MySQL es uno de los sistemas de gesti\u00f3n de bases de datos m\u00e1s utilizados del mundo, presente en miles de aplicaciones web, desde blogs hasta grandes plataformas digitales. En esta gu\u00eda de MySQL para principiantes aprender\u00e1s desde cero c\u00f3mo funciona una base de datos, c\u00f3mo instalarlo y c\u00f3mo ejecutar tus primeras consultas paso a paso, [&hellip;]<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-11176","post","type-post","status-publish","format-standard","hentry","category-consejos-rapidos"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>MySQL para principiantes: gu\u00eda completa desde cero<\/title>\n<meta name=\"description\" content=\"Aprende MySQL desde cero con esta gu\u00eda para principiantes: instalaci\u00f3n, consultas SQL, ejemplos pr\u00e1cticos y trucos paso a paso.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/avila.datasystem.es\/en\/mysql-para-principiantes-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MYSQL para principiantes\" \/>\n<meta property=\"og:description\" content=\"Aprende MySQL desde cero con esta gu\u00eda para principiantes: instalaci\u00f3n, consultas SQL, ejemplos pr\u00e1cticos y trucos paso a paso.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/avila.datasystem.es\/en\/mysql-para-principiantes-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Reparaci\u00f3n de ordenadores a domicilio - 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