Types of NoSQL Databases

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<div class="infographic-nosqltabs" id="nosqltabs">

  <div class="nx-head">
    <h2>The Four Types of NoSQL Databases</h2>
    <p>Same idea, four different shapes. Click through to see how each one actually structures data.</p>
  </div>

  <div class="nx-tabs">
    <button class="nx-tab" data-tab="kv" type="button">📋 Key-Value</button>
    <button class="nx-tab" data-tab="doc" type="button">📦 Document</button>
    <button class="nx-tab" data-tab="col" type="button">📊 Column-Family</button>
    <button class="nx-tab" data-tab="graph" type="button">🌐 Graph</button>
  </div>

  <!-- Key-Value -->
  <div class="nx-panel" data-panel="kv">
    <div class="nx-frame">
      <p class="nx-desc">A unique key mapped to an opaque value. No schema, no query language beyond "give me the value for this key" — just extremely fast lookups.</p>
      <div class="nx-visual-scroll">
        <div class="nx-kv-list">
          <div class="nx-kv-row"><span class="nx-kv-key">user:101</span><span class="nx-kv-val">{"name":"Alice","plan":"pro"}</span></div>
          <div class="nx-kv-row"><span class="nx-kv-key">user:102</span><span class="nx-kv-val">{"name":"Bob"}</span></div>
          <div class="nx-kv-row"><span class="nx-kv-key">session:abc</span><span class="nx-kv-val">userId=101, expires=2026-08-01</span></div>
        </div>
      </div>
      <div class="nx-info-row">
        <div class="nx-info-chip"><span class="lbl">Examples</span>Redis, DynamoDB</div>
        <div class="nx-info-chip"><span class="lbl">Best for</span>Caching, session storage, feature flags</div>
      </div>
    </div>
  </div>

  <!-- Document -->
  <div class="nx-panel" data-panel="doc">
    <div class="nx-frame">
      <p class="nx-desc">Stores JSON-like documents. Each record only holds the fields it actually needs — no forced NULLs, no rigid schema.</p>
      <div class="nx-visual-scroll">
        <div class="nx-doc-row">
          <div class="nx-doc-card">{<br>&nbsp;&nbsp;<span class="k">name</span>: "Alice",<br>&nbsp;&nbsp;<span class="k">email</span>: "alice@mail.com",<br>&nbsp;&nbsp;<span class="k">hobbies</span>: ["Reading","Chess"]<br>}</div>
          <div class="nx-doc-card">{<br>&nbsp;&nbsp;<span class="k">name</span>: "Bob",<br>&nbsp;&nbsp;<span class="k">email</span>: "bob@mail.com"<br><span class="missing">&nbsp;&nbsp;// no hobbies field</span><br>}</div>
        </div>
      </div>
      <div class="nx-info-row">
        <div class="nx-info-chip"><span class="lbl">Examples</span>MongoDB, CouchDB</div>
        <div class="nx-info-chip"><span class="lbl">Best for</span>Content management, product catalogs, user profiles</div>
      </div>
    </div>
  </div>

  <!-- Column-Family -->
  <div class="nx-panel" data-panel="col">
    <div class="nx-frame">
      <p class="nx-desc">Data is grouped by column instead of by row, so scanning one attribute across millions of records stays fast.</p>
      <div class="nx-visual-scroll">
        <div class="nx-col-row">
          <div class="nx-col-block">
            <div class="nx-col-head">Name</div>
            <div class="nx-col-cell">Alice</div>
            <div class="nx-col-cell">Bob</div>
            <div class="nx-col-cell">Carol</div>
          </div>
          <div class="nx-col-block">
            <div class="nx-col-head">Dept</div>
            <div class="nx-col-cell">HR</div>
            <div class="nx-col-cell">Sales</div>
            <div class="nx-col-cell">HR</div>
          </div>
          <div class="nx-col-block">
            <div class="nx-col-head">Login</div>
            <div class="nx-col-cell">09:01</div>
            <div class="nx-col-cell is-null">—</div>
            <div class="nx-col-cell">09:14</div>
          </div>
        </div>
      </div>
      <div class="nx-info-row">
        <div class="nx-info-chip"><span class="lbl">Examples</span>Cassandra, HBase</div>
        <div class="nx-info-chip"><span class="lbl">Best for</span>Time-series data, large-scale analytics</div>
      </div>
    </div>
  </div>

  <!-- Graph -->
  <div class="nx-panel" data-panel="graph">
    <div class="nx-frame">
      <p class="nx-desc">Data is modeled as nodes and edges. Relationships are stored directly, instead of being computed with joins.</p>
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        <svg viewBox="0 0 500 200" role="img" aria-label="Graph of Alice, Bob, and Carol with follows relationships">
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          <text class="nx-node-text" x="240" y="37">Alice</text>

          <circle class="nx-node-circle" cx="90" cy="118" r="34"></circle>
          <text class="nx-node-text" x="90" y="123">Bob</text>

          <circle class="nx-node-circle" cx="410" cy="118" r="34"></circle>
          <text class="nx-node-text" x="410" y="123">Carol</text>
        </svg>
      </div>
      <div class="nx-info-row">
        <div class="nx-info-chip"><span class="lbl">Examples</span>Neo4j, ArangoDB</div>
        <div class="nx-info-chip"><span class="lbl">Best for</span>Social networks, recommendation engines, fraud detection</div>
      </div>
    </div>
  </div>

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