--- title: Database Indexing Simulator | daily.dev description: An interactive simulator demonstrates how database indexes work by comparing full table scans versus index seeks. It explains B-tree structure, shows when to... canonical: https://daily.dev/posts/56ifxfznk twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Database Indexing Simulator | daily.dev og:description: An interactive simulator demonstrates how database indexes work by comparing full table scans versus index seeks. It explains B-tree structure, shows when to... og:url: https://daily.dev/posts/56ifxfznk og:image: https://api.daily.dev/og/posts/56ifXfzNK.png og:image:alt: Post cover image og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Database Indexing Simulator **[Database Daily](https://daily.dev/sources/databasedaily)** · [@bobbyiliev](https://daily.dev/bobbyiliev) · 4 upvotes · 0 comments ## Summary An interactive simulator demonstrates how database indexes work by comparing full table scans versus index seeks. It explains B-tree structure, shows when to create indexes (WHERE clauses, JOINs, ORDER BY), covers different index types (single-column, composite, unique), and discusses trade-offs including storage overhead, write performance impact, and maintenance considerations. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How Database Indexes Work – A Practical Guide with PostgreSQL Examples](https://daily.dev/posts/how-database-indexes-work-a-practical-guide-with-postgresql-examples-8anfbdgcl) · freeCodeCamp · 72 upvotes · 0 comments - [Things you didn't know about indexes](https://daily.dev/posts/things-you-didn-t-know-about-indexes-a4znm2ugw) · Lobsters · 0 upvotes · 0 comments - [Database Animations: How Index Seeks Work](https://daily.dev/posts/database-animations-how-index-seeks-work-y2bmybkqd) · Brent Ozar · 0 upvotes · 0 comments - [Introduction to PostgreSQL Indexes ::](https://daily.dev/posts/introduction-to-postgresql-indexes--peasixbnz) · Hacker News · 0 upvotes · 0 comments - [Beyond Indexes: How Open Table Formats Optimize Query Performance — Jack Vanlightly](https://daily.dev/posts/beyond-indexes-how-open-table-formats-optimize-query-performance-jack-vanlightly-inrhgb2yf) · Programming Digest · 0 upvotes · 0 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#database](https://daily.dev/tags/database), [#sql](https://daily.dev/tags/sql), [#data-structures](https://daily.dev/tags/data-structures) [View this post on daily.dev](https://daily.dev/posts/56ifxfznk) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/56ifxfznk","headline":"Database Indexing Simulator","text":"Shared: Database Indexing Simulator","url":"https://daily.dev/posts/56ifxfznk","datePublished":"2026-02-13T14:41:15.758Z","dateModified":"2026-02-13T14:41:49.736Z","author":{"@type":"Person","name":"Bobby Iliev","url":"https://daily.dev/bobbyiliev","image":"https://avatars3.githubusercontent.com/u/21223421?v=4","description":"DevOps, DevEx, cloud & open source\n","worksFor":{"@type":"Organization","name":"Materialize","logo":"https://res.cloudinary.com/daily-now/image/upload/s--4mL2CrlK--/f_auto/v1725263959/companies/materialize"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":82720}},"image":"https://media.daily.dev/image/upload/s--foaA6JGU--/f_auto/v1722860399/public/Placeholder%2004","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":4},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"sharedContent":{"@type":"WebPage","url":"https://api.daily.dev/r/KozooFnnv"},"isPartOf":{"@type":"WebPage","url":"https://daily.dev/squads/databasedaily","name":"Database Daily"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Database Daily","item":"https://daily.dev/squads/databasedaily"},{"@type":"ListItem","position":3,"name":"Database Indexing Simulator"}]} ```