sql - 可视化正在使用什么sql语句

Question

我有一个SQL语句，该语句使用通过另一组语句构建的一些表，这些表又由更多组语句等构建。以大约8度散开到大约25个表(在第4级变宽，但在该级别最终开始向下指向相同的几个常见资源)。

我正在为Graphviz创建一个点文件，该文件显示每个语句的选定列以及每个语句来自哪个表。由于涉及案例语句和函数，因此有时每列有多个来源。一旦达到几个级别，它不仅有点杂乱，而且很难正确地读写。

我一直在尝试寻找是否有一种工具可以分析SQL select语句和(而不是制作执行计划图)图表，这些图表的来龙去脉。优选地，该工具将能够将其与多层语句组合。

有人知道这样的工具吗？

您会看到，在Google上搜索“绘制sql语句”之类的内容最终会产生大量结果，说明如何使用SQL查询中的数据或特定于图形数据库的数据制作图表。既不在这里也不在那里，将“图形”更改为“可视化”也无济于事。

例如。

SELECT CASE WHEN A.info IS NULL THEN 'Jam'
            WHEN B.inform LIKE 'N/A%' THEN 'Butter'
            WHEN A.info > 4 THEN 'Apricot'
            ELSE 'Organic'
       END AS information,
       -- More of the same
       FROM 2_KU_4_SKU AS A
       LEFT JOIN
       SKU_HOWS_ROC AS B
       ON A.fskuid = B.idfsk;
INSERT INTO 2_KU_4_SKU
       -- More case statements and other stuff but lets just say
       sku_id AS fskuid,
       short_sku_desc AS info
       FROM BASIC_SKU_TABLE_NOT_A_VIEW_TEDS_VERSION_LATEST_Q108;
INSERT INTO SKU_HOWS_ROC
       -- You guessed it
       sku_id AS idfsk, -- Because words
       sku_blurb AS inform
       FROM BASIC_SKU_TABLE_STILL_NOT_A_VIEW_BILLS_EXCELLENT_VERSION;

可能希望领导一个工具来绘制类似以下内容的东西:



通过基本上解析上面的SQL和(一个选项)为Graphviz生成DOT文件，如下所示:

Digraph G {
  fontname = "sans-serif";
  node [fontname="sans-serif",shape="record"];
  subgraph cluster0 {
    label="SELECT";
    information;
  }
  subgraph cluster1 {
     label="SKU_HOWS_ROC";
     a_idfsk [label="idfsk"];
     a_info [label="info"];
  }
  a_info -> information;

  subgraph cluster2 {
     label="2_KU_4_SKU";
     b_fskuid [label="fskuid"];
     b_inform [label="inform"];
  }
  b_inform -> information;
  b_fskuid -> a_idfsk -> b_fskuid;

  subgraph cluster3 {
     label="BASIC_SKU_TABLE_NOT_A_VIEW_TEDS_VERSION_LATEST_Q108";
     c_sku_id [label="sku_id"];
     c_short_sku_desc [label="short_sku_desc"];
  }
  c_short_sku_desc -> a_info;
  c_sku_id -> a_idfsk;

  subgraph cluster4 {
     label="BASIC_SKU_TABLE_STILL_NOT_A_VIEW_BILLS_EXCELLENT_VERSION";
     d_sku_id [label="sku_id"];
     d_sku_blurb [label="sku_blurb"];
  }
  d_sku_id -> b_fskuid;
  d_sku_blurb -> b_inform;
}

如果可以使用奇特的记录类型节点标签来稍微绘制表，那就更好了。

并且，由于Graphviz可以生成SVG，但是StackOverflow似乎无法以我能看到的任何方式嵌入它，因此请运行此SVG片段以查看其外观(如果上面嵌入的imgur无法正常工作)。

<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
 "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<!-- Generated by graphviz version 2.39.20160727.0821 (20160727.0821)
 -->
<!-- Title: G Pages: 1 -->
<svg viewBox="0.00 0.00 988.00 265.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
  <g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 261)">
    <title>G</title>
    <polygon fill="white" stroke="transparent" points="-4,4 -4,-261 984,-261 984,4 -4,4" />
    <g id="clust2" class="cluster">
      <title>cluster1</title>
      <polygon fill="none" stroke="black" points="329,-91 329,-166 471,-166 471,-91 329,-91" />
      <text text-anchor="middle" x="400" y="-150.8" font-family="sans-serif" font-size="14.00">SKU_HOWS_ROC</text>
    </g>
    <g id="clust1" class="cluster">
      <title>cluster0</title>
      <polygon fill="none" stroke="black" points="388,-8 388,-83 490,-83 490,-8 388,-8" />
      <text text-anchor="middle" x="439" y="-67.8" font-family="sans-serif" font-size="14.00">SELECT</text>
    </g>
    <g id="clust3" class="cluster">
      <title>cluster2</title>
      <polygon fill="none" stroke="black" points="485,-91 485,-166 627,-166 627,-91 485,-91" />
      <text text-anchor="middle" x="556" y="-150.8" font-family="sans-serif" font-size="14.00">2_KU_4_SKU</text>
    </g>
    <g id="clust5" class="cluster">
      <title>cluster4</title>
      <polygon fill="none" stroke="black" points="477,-174 477,-249 972,-249 972,-174 477,-174" />
      <text text-anchor="middle" x="724.5" y="-233.8" font-family="sans-serif" font-size="14.00">BASIC_SKU_TABLE_STILL_NOT_A_VIEW_BILLS_EXCELLENT_VERSION</text>
    </g>
    <g id="clust4" class="cluster">
      <title>cluster3</title>
      <polygon fill="none" stroke="black" points="8,-174 8,-249 469,-249 469,-174 8,-174" />
      <text text-anchor="middle" x="238.5" y="-233.8" font-family="sans-serif" font-size="14.00">BASIC_SKU_TABLE_NOT_A_VIEW_TEDS_VERSION_LATEST_Q108</text>
    </g>
    <!-- information -->
    <g id="node1" class="node">
      <title>information</title>
      <polygon fill="none" stroke="black" points="396.373,-16.5 396.373,-52.5 481.627,-52.5 481.627,-16.5 396.373,-16.5" />
      <text text-anchor="middle" x="439" y="-30.3" font-family="sans-serif" font-size="14.00">information</text>
    </g>
    <!-- a_idfsk -->
    <g id="node2" class="node">
      <title>a_idfsk</title>
      <polygon fill="none" stroke="black" points="409,-99.5 409,-135.5 463,-135.5 463,-99.5 409,-99.5" />
      <text text-anchor="middle" x="435.893" y="-113.3" font-family="sans-serif" font-size="14.00">idfsk</text>
    </g>
    <!-- b_fskuid -->
    <g id="node4" class="node">
      <title>b_fskuid</title>
      <polygon fill="none" stroke="black" points="565,-99.5 565,-135.5 619,-135.5 619,-99.5 565,-99.5" />
      <text text-anchor="middle" x="591.786" y="-113.3" font-family="sans-serif" font-size="14.00">fskuid</text>
    </g>
    <!-- a_idfsk&#45;&gt;b_fskuid -->
    <g id="edge4" class="edge">
      <title>a_idfsk&#45;&gt;b_fskuid</title>
      <path fill="none" stroke="black" d="M446.616,-135.503C455.979,-149.063 471.07,-165.983 490,-170 504.373,-173.05 544.531,-175.185 556,-166 563.413,-160.064 570.086,-152.258 575.615,-144.648" />
      <polygon fill="black" stroke="black" points="578.818,-146.164 581.557,-135.929 573.033,-142.222 578.818,-146.164" />
    </g>
    <!-- a_info -->
    <g id="node3" class="node">
      <title>a_info</title>
      <polygon fill="none" stroke="black" points="337,-99.5 337,-135.5 391,-135.5 391,-99.5 337,-99.5" />
      <text text-anchor="middle" x="363.786" y="-113.3" font-family="sans-serif" font-size="14.00">info</text>
    </g>
    <!-- a_info&#45;&gt;information -->
    <g id="edge1" class="edge">
      <title>a_info&#45;&gt;information</title>
      <path fill="none" stroke="black" d="M380.274,-99.4902C390.62,-88.0401 404.181,-73.0328 415.665,-60.3245" />
      <polygon fill="black" stroke="black" points="418.391,-62.5274 422.499,-52.7612 413.198,-57.8343 418.391,-62.5274" />
    </g>
    <!-- b_fskuid&#45;&gt;a_idfsk -->
    <g id="edge3" class="edge">
      <title>b_fskuid&#45;&gt;a_idfsk</title>
      <path fill="none" stroke="black" d="M581.557,-135.929C575.195,-145.863 566.313,-157.741 556,-166 544.531,-175.185 504.373,-173.05 490,-170 474.767,-166.767 462.021,-155.18 452.744,-143.712" />
      <polygon fill="black" stroke="black" points="455.403,-141.423 446.616,-135.503 449.793,-145.61 455.403,-141.423" />
    </g>
    <!-- b_inform -->
    <g id="node5" class="node">
      <title>b_inform</title>
      <polygon fill="none" stroke="black" points="492.552,-99.5 492.552,-135.5 547.448,-135.5 547.448,-99.5 492.552,-99.5" />
      <text text-anchor="middle" x="520" y="-113.3" font-family="sans-serif" font-size="14.00">inform</text>
    </g>
    <!-- b_inform&#45;&gt;information -->
    <g id="edge2" class="edge">
      <title>b_inform&#45;&gt;information</title>
      <path fill="none" stroke="black" d="M502.424,-99.4902C491.145,-87.9321 476.328,-72.7493 463.852,-59.9655" />
      <polygon fill="black" stroke="black" points="466.31,-57.4735 456.821,-52.7612 461.301,-62.3626 466.31,-57.4735" />
    </g>
    <!-- c_sku_id -->
    <g id="node6" class="node">
      <title>c_sku_id</title>
      <polygon fill="none" stroke="black" points="404.766,-182.5 404.766,-218.5 461.234,-218.5 461.234,-182.5 404.766,-182.5" />
      <text text-anchor="middle" x="433" y="-196.3" font-family="sans-serif" font-size="14.00">sku_id</text>
    </g>
    <!-- c_sku_id&#45;&gt;a_idfsk -->
    <g id="edge6" class="edge">
      <title>c_sku_id&#45;&gt;a_idfsk</title>
      <path fill="none" stroke="black" d="M433.651,-182.49C434.037,-171.796 434.536,-157.999 434.975,-145.871" />
      <polygon fill="black" stroke="black" points="438.476,-145.881 435.34,-135.761 431.481,-145.628 438.476,-145.881" />
    </g>
    <!-- c_short_sku_desc -->
    <g id="node7" class="node">
      <title>c_short_sku_desc</title>
      <polygon fill="none" stroke="black" points="272.973,-182.5 272.973,-218.5 387.027,-218.5 387.027,-182.5 272.973,-182.5" />
      <text text-anchor="middle" x="330" y="-196.3" font-family="sans-serif" font-size="14.00">short_sku_desc</text>
    </g>
    <!-- c_short_sku_desc&#45;&gt;a_info -->
    <g id="edge5" class="edge">
      <title>c_short_sku_desc&#45;&gt;a_info</title>
      <path fill="none" stroke="black" d="M337.377,-182.49C341.847,-171.58 347.639,-157.441 352.679,-145.138" />
      <polygon fill="black" stroke="black" points="355.968,-146.342 356.519,-135.761 349.49,-143.688 355.968,-146.342" />
    </g>
    <!-- d_sku_id -->
    <g id="node8" class="node">
      <title>d_sku_id</title>
      <polygon fill="none" stroke="black" points="579.766,-182.5 579.766,-218.5 636.234,-218.5 636.234,-182.5 579.766,-182.5" />
      <text text-anchor="middle" x="608" y="-196.3" font-family="sans-serif" font-size="14.00">sku_id</text>
    </g>
    <!-- d_sku_id&#45;&gt;b_fskuid -->
    <g id="edge7" class="edge">
      <title>d_sku_id&#45;&gt;b_fskuid</title>
      <path fill="none" stroke="black" d="M604.528,-182.49C602.467,-171.796 599.807,-157.999 597.469,-145.871" />
      <polygon fill="black" stroke="black" points="600.85,-144.918 595.52,-135.761 593.976,-146.243 600.85,-144.918" />
    </g>
    <!-- d_sku_blurb -->
    <g id="node9" class="node">
      <title>d_sku_blurb</title>
      <polygon fill="none" stroke="black" points="484.648,-182.5 484.648,-218.5 561.352,-218.5 561.352,-182.5 484.648,-182.5" />
      <text text-anchor="middle" x="523" y="-196.3" font-family="sans-serif" font-size="14.00">sku_blurb</text>
    </g>
    <!-- d_sku_blurb&#45;&gt;b_inform -->
    <g id="edge8" class="edge">
      <title>d_sku_blurb&#45;&gt;b_inform</title>
      <path fill="none" stroke="black" d="M522.349,-182.49C521.963,-171.796 521.464,-157.999 521.025,-145.871" />
      <polygon fill="black" stroke="black" points="524.519,-145.628 520.66,-135.761 517.524,-145.881 524.519,-145.628" />
    </g>
  </g>
</svg>

Answer 1

您也许可以使用MySQL Workbench中的Visual Explain功能。我没有亲自使用过它，但是看起来它可以提供比标准EXPLAIN命令更好的洞察力。看看这个链接，祝你好运!

https://dev.mysql.com/doc/workbench/en/wb-tutorial-visual-explain-dbt3.html