[{"data":1,"prerenderedAt":77},["ShallowReactive",2],{"term-e\u002Ferd":3,"related-e\u002Ferd":60},{"id":4,"title":5,"acronym":6,"body":7,"category":40,"description":41,"difficulty":42,"extension":43,"letter":44,"meta":45,"navigation":46,"path":47,"related":48,"seo":53,"sitemap":54,"stem":57,"subcategory":58,"__hash__":59},"terms\u002Fterms\u002Fe\u002Ferd.md","ERD","Entity Relationship Diagram",{"type":8,"value":9,"toc":33},"minimark",[10,15,19,23,26,30],[11,12,14],"h2",{"id":13},"eli5-the-vibe-check","ELI5 — The Vibe Check",[16,17,18],"p",{},"An ERD is a visual map of your database — boxes for tables, lines showing how they connect. It is the diagram you draw (or ask AI to draw) before building a database so everyone understands how data relates. Way easier than reading raw SQL.",[11,20,22],{"id":21},"real-talk","Real Talk",[16,24,25],{},"An Entity Relationship Diagram visually represents the entities (tables), their attributes (columns), and the relationships between them in a database. It uses notation like crows-foot or Chen notation to show cardinality (one-to-one, one-to-many, many-to-many). ERDs are used for database design and documentation.",[11,27,29],{"id":28},"when-youll-hear-this","When You'll Hear This",[16,31,32],{},"\"Draw an ERD before designing the schema.\" \u002F \"The ERD shows that users can have many orders.\"",{"title":34,"searchDepth":35,"depth":35,"links":36},"",2,[37,38,39],{"id":13,"depth":35,"text":14},{"id":21,"depth":35,"text":22},{"id":28,"depth":35,"text":29},"database","An ERD is a visual map of your database — boxes for tables, lines showing how they connect.","intermediate","md","e",{},true,"\u002Fterms\u002Fe\u002Ferd",[49,50,51,52,6],"Schema","Normalization","One-to-Many","Many-to-Many",{"title":5,"description":41},{"changefreq":55,"priority":56},"weekly",0.7,"terms\u002Fe\u002Ferd",null,"MmC1XS7mXw3fl_ieO8kR-QpcFLwPcL9_k4xZeJVSuew",[61,64,67,70,74],{"title":6,"path":62,"acronym":58,"category":40,"difficulty":42,"description":63},"\u002Fterms\u002Fe\u002Fentity-relationship-diagram","Same as ERD — a visual picture of your database tables and how they connect. Lines between boxes show relationships.",{"title":52,"path":65,"acronym":58,"category":40,"difficulty":42,"description":66},"\u002Fterms\u002Fm\u002Fmany-to-many","Many-to-Many means rows on both sides can relate to many rows on the other side. Students can enroll in many courses, and courses can have many students.",{"title":50,"path":68,"acronym":58,"category":40,"difficulty":42,"description":69},"\u002Fterms\u002Fn\u002Fnormalization","Normalization is the process of organizing your database to reduce data duplication.",{"title":51,"path":71,"acronym":58,"category":40,"difficulty":72,"description":73},"\u002Fterms\u002Fo\u002Fone-to-many","beginner","One-to-Many means one row in Table A can relate to many rows in Table B. One user can have many orders. One post can have many comments.",{"title":49,"path":75,"acronym":58,"category":40,"difficulty":72,"description":76},"\u002Fterms\u002Fs\u002Fschema","A database schema is the blueprint of your database — which tables exist, what columns they have, what types they are, and how they relate to each other.",1776518276007]