[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-190419-112":3,"detail-sidebar-cat-1-pt-112":80,"doc-detail-190419-pt":114},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},112,"pt","exercicio-transformacao-mc-para-mlr","Exercicio Transformacao MC para MLR","","This document presents database modeling examples using the Entity-Relationship (ER) model. It illustrates the transformation of conceptual models into logical models, specifically focusing on the transformation from a Many-to-Many (MC) relationship to a Many-to-One (MLR) relationship. The examples showcase different scenarios involving entities such as Engineers and Projects, Employees and Dependents, and Persons, detailing their attributes and relationships. The diagrams are crucial for understanding how to represent real-world data structures in a database context, emphasizing the cardinality of relationships and the identification of primary and foreign keys. The text and diagrams collectively serve as a practical guide for database designers and developers, ensuring accurate and efficient data representation in relational databases by transforming conceptual complexities into manageable logical structures.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/pt/template/","Template",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/pt/template/geral/","Geral",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/pt/template/exercicio-transformacao-mc-para-mlr/190419/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/exercicio-transformacao-mc-para-mlr/190419.png","ImageObject",442,249,{"name":42,"@type":43},"Asher","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-07","2026-09-03",true,{"@type":52,"interactionType":53,"userInteractionCount":33},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"What is the purpose of the ER model in database design?","Question",{"text":62,"@type":63},"The ER model is used to represent the structure of a database conceptually, defining entities, their attributes, and the relationships between them before it is implemented in a specific database system.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"What does the cardinality (0,n) and (1,1) represent in the ER diagrams?",{"text":67,"@type":63},"Cardinality indicates the number of instances of one entity that can be associated with instances of another entity. (0,n) means zero to many, while (1,1) means exactly one.",{"name":69,"@type":60,"acceptedAnswer":70},"How is a Many-to-Many relationship transformed in a logical model?",{"text":71,"@type":63},"A Many-to-Many relationship is typically transformed by introducing an intermediary or associative entity that has a One-to-Many relationship with each of the original entities involved in the Many-to-Many relationship.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},190419,1790317646,{"code":4,"msg":81,"data":82},"success",[83,87,91,95,99,103,107,110],{"id":84,"doc_module":22,"doc_module_name":25,"category_name":85,"show_sort_weight":4,"slug":86},167,"Apresentações","apresentacoes",{"id":88,"doc_module":22,"doc_module_name":25,"category_name":89,"show_sort_weight":4,"slug":90},174,"Cartas","cartas",{"id":92,"doc_module":22,"doc_module_name":25,"category_name":93,"show_sort_weight":4,"slug":94},171,"Cartazes","cartazes",{"id":96,"doc_module":22,"doc_module_name":25,"category_name":97,"show_sort_weight":4,"slug":98},168,"Currículos","curriculos",{"id":100,"doc_module":22,"doc_module_name":25,"category_name":101,"show_sort_weight":4,"slug":102},170,"Faturas","faturas",{"id":104,"doc_module":22,"doc_module_name":25,"category_name":105,"show_sort_weight":4,"slug":106},173,"Formulários","formularios",{"id":108,"doc_module":22,"doc_module_name":25,"category_name":29,"show_sort_weight":4,"slug":109},175,"geral-25299031d61e408a910febceb3238a26",{"id":111,"doc_module":22,"doc_module_name":25,"category_name":112,"show_sort_weight":4,"slug":113},172,"Redes sociais","redes-sociais",{"code":4,"msg":81,"data":115},{"doc_id":78,"user_id":116,"nickname":42,"user_avatar":117,"doc_module":22,"category_id":108,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":11,"file_id":118,"file_url":119,"file_type":120,"file_size":121,"view_count":33,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":26,"language":122,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":123,"faqs":124,"seo_title":125,"seo_description":12,"update_tm":126,"read_time":22},687197207639,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","cbCainsKd8aE74J3","https://ap.wps.com/l/cbCainsKd8aE74J3","pdf",376493,"Portuguese","# Engenheiro - Projeto\n## Empregado - Dependente\n## Pessoa","[{\"question\":\"What is the purpose of the ER model in database design?\",\"answer\":\"The ER model is used to represent the structure of a database conceptually, defining entities, their attributes, and the relationships between them before it is implemented in a specific database system.\"},{\"question\":\"What does the cardinality (0,n) and (1,1) represent in the ER diagrams?\",\"answer\":\"Cardinality indicates the number of instances of one entity that can be associated with instances of another entity. (0,n) means zero to many, while (1,1) means exactly one.\"},{\"question\":\"How is a Many-to-Many relationship transformed in a logical model?\",\"answer\":\"A Many-to-Many relationship is typically transformed by introducing an intermediary or associative entity that has a One-to-Many relationship with each of the original entities involved in the Many-to-Many relationship.\"}]","Exercicio Transformacao MC para MLR | PDF",1788402640]