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| − | A database is an organized collection of data.[1] It is the collection of schemas, tables, queries, reports, views, and other objects. https://en.wikipedia.org/wiki/Database
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| − | ==SQL==
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| − | SQL (Structured Query Language) is a special-purpose programming language designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS). https://en.wikipedia.org/wiki/SQL
| + | A database is an organized collection of data. It is the collection of schemas, tables, queries, reports, views, and other objects. https://en.wikipedia.org/wiki/Database |
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| − | ==Database management system==
| + | A very basic and nice explanation of the types of DBMS: https://www.youtube.com/watch?v=FR4QIeZaPeM&feature=emb_logo |
| − | A database management system (DBMS) is a computer software application that interacts with the user, other applications, and the database itself to capture and analyze data. A general-purpose DBMS is designed to allow the definition, creation, querying, update, and administration of databases. Well-known DBMSs include MySQL, PostgreSQL, MongoDB, Microsoft SQL Server, Oracle, Sybase, SAP HANA, and IBM DB2. A database is not generally portable across different DBMSs, but different DBMS can interoperate by using standards such as SQL and ODBC or JDBC to allow a single application to work with more than one DBMS. Database management systems are often classified according to the database model that they support; the most popular database systems since the 1980s have all supported the relational model as represented by the SQL language. https://en.wikipedia.org/wiki/Database | |
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| − | ==MySQL==
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| − | [[Web Development#Instalación de MySQL|Instalación de MySQL]]
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| − | MySQL est un système de gestion de bases de données relationnelles (SGBDR). Il fait partie des logiciels de gestion de base de données les plus utilisés au monde. En informatique, un système de gestion de base de données (abr. SGBD) est un logiciel système destiné à stocker et à partager des informations dans une base de données. SQL fait référence au Structured Query Language, le langage de requête utilisé. SQL (sigle de Structured Query Language, en français langage de requête structurée) est un langage informatique normalisé servant à exploiter des bases de données relationnelles.
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| − | ===PhpMyAdmin=== | + | '''NoSQL databases''':<br /> |
| − | [[Web Development#Instalación de PhpMyAdmin|Instalación de PhpMyAdmin]]
| + | This is good to start understanding NoSQL databases and the difference with relational databases: https://www.youtube.com/watch?v=uD3p_rZPBUQ |
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| − | PMA est une application Web de gestion pour les systèmes de gestion de base de données MySQL réalisée en PHP et distribuée sous licence GNU GPL.
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| − | ===MySQL shell===
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| − | A través de la línea de comando: http://www.desarrolloweb.com/articulos/2408.php
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| − | Para ingresar a sql desde la línea de comandos:
| + | '''Data Warehouse''':<br /> |
| − | mysql -u root -p
| + | This is a very good explanation of what a Data Warehouse is: https://www.youtube.com/watch?v=k4tK2ttdSDg |
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| − | Para listar las bases de datos:
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| − | show databases;
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| − | Para ingresar o cambiar de base de datos:
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| − | use nombre_database;
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| − | Para listar las tablas en la base de datos:
| + | <div style="width:30%"> |
| − | show tables;
| + | <div style="margin-left:-50pt"> |
| | + | {{#lst:Mis páginas|databases}} |
| | + | </div> |
| | + | </div> |
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| − | Para desplegar una tabla:
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| − | describe nombre_tabla;
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| − | Para borrar toda la base de datos:
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| − | drop database nombre_de_la_base
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| − | Para borrar tablas por separado:
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| − | drop table nombre_tabla;
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| − | Para borrar todas las tablas que comienzan por un prefijo:
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| − | http://www.aprenderaprogramar.com/foros/index.php?topic=569.0
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| − | SELECT CONCAT("DROP TABLE ", GROUP_CONCAT(table_name), ";")
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| − | FROM information_schema.tables
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| − | WHERE table_schema = "Nombre_database" AND table_name LIKE "prueba%";
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| − | El Script anterior genera la sentencia a utilizar para borrar todas las tablas de la base de datos "Nombre_database" que comienzan por "prueba"
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| − | ==Oracle Database==
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| − | C'est un système de gestion de base de données relationnelle (SGBDR)
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| − | ===Oracle SQL Developer===
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| − | C'est un environnement de développement intégré (EDI) multi-plateforme, fourni gratuitement par Oracle Corporation et utilisant la technologie Java (Java Development Kit). C'est un outil graphique permettant d'interroger des bases de données Oracle à l'aide du langage SQL.
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