obsidian-vault/Summaries/Obsidian Dataview.md

title, category, type, source, date, tags

title	category	type	source	date	tags
Obsidian Dataview	Summary	Tool/Plugin	https://github.com/blacksmithgu/obsidian-dataview	2026-02-23	obsidian dataview plugin query database

Obsidian Dataview

URL: https://github.com/blacksmithgu/obsidian-dataview
Description: A data index and query language over Markdown files for Obsidian
Date Summarized: 2026-02-24

---

tl;dr

Treat your Obsidian Vault as a database that you can query. Query, filter, sort, and extract data from Markdown pages using YAML frontmatter and inline fields.

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What It Does

Dataview generates data from your vault by pulling information from:

1. Markdown Frontmatter — YAML at the top of documents:

---
alias: "document"
last-reviewed: 2021-08-17
rating: 8
status: active
---

2. Inline Fields — Key:: Value syntax in documents:

Basic Field:: Value
**Bold Field**:: Nice!
You can also write [field:: inline fields]
(field2:: hidden field)  

---

Query Modes

1. Dataview Query Language (DQL)

Pipeline-based, SQL-like expressions:

TABLE file.name AS "File", rating AS "Rating" 
FROM #book
SORT rating DESC

2. Inline Expressions

Embed directly in markdown: = this.file.name → shows filename

3. DataviewJS

JavaScript for complex logic:

for (let group of dv.pages("#book")
  .where(p => p["time-read"].year == 2021)
  .groupBy(p => p.genre)) {
    dv.header(3, group.key);
    dv.table(["Name", "Rating"], group.rows
      .sort(k => k.rating, 'desc')
      .map(k => [k.file.link, k.rating]))
}

---

Example Use Cases

Table of games with metadata:

TABLE time-played, length, rating
FROM "games"
SORT rating DESC

List by tags:

LIST FROM #game/moba or #game/crpg

Tasks from active projects:

TASK FROM #projects/active

Books read in 2021, grouped by genre:

for (let group of dv.pages("#book")
  .where(p => p["time-read"].year == 2021)
  .groupBy(p => p.genre)) {
    dv.header(3, group.key);
    dv.table(["Name", "Time Read", "Rating"],
      group.rows.sort(k => k.rating, 'desc')
      .map(k => [k.file.link, k["time-read"], k.rating]))
}

---

Key Features

• ✅ Query any Markdown files in your vault
• ✅ Filter by tags, folders, metadata
• ✅ Sort by any field
• ✅ Group results
• ✅ Render as tables, lists, or tasks
• ✅ JavaScript API for complex logic
• ✅ Inline fields for hidden metadata
• ✅ Automatic data index updates

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Potential Uses for Corey's Vault

1. Home Assistant Automations Table — Query all automations by status
2. Projects Dashboard — Active vs completed projects
3. Daily Notes Query — Recent entries, completed tasks
4. Research Summaries — All /summarize outputs by date
5. Cron Jobs Status — Active vs disabled jobs

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Installation

Available in Obsidian Community Plugins:

1. Settings → Community Plugins → Browse
2. Search "Dataview"
3. Install & Enable

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Full Docs: https://blacksmithgu.github.io/obsidian-dataview/

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Source: https://github.com/blacksmithgu/obsidian-dataview