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     <h2 class="title">
      <a name="innodb-information-schema-tables">
      </a>
      28.4 INFORMATION_SCHEMA InnoDB Tables
     </h2>
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  </div>
  <div class="toc">
   <dl class="toc">
    <dt>
     <span class="section">
      <a href="information-schema-innodb-table-reference.html">
       28.4.1 INFORMATION_SCHEMA InnoDB Table Reference
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-buffer-page-table.html">
       28.4.2 The INFORMATION_SCHEMA INNODB_BUFFER_PAGE Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-buffer-page-lru-table.html">
       28.4.3 The INFORMATION_SCHEMA INNODB_BUFFER_PAGE_LRU Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-buffer-pool-stats-table.html">
       28.4.4 The INFORMATION_SCHEMA INNODB_BUFFER_POOL_STATS Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-cached-indexes-table.html">
       28.4.5 The INFORMATION_SCHEMA INNODB_CACHED_INDEXES Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-cmp-table.html">
       28.4.6 The INFORMATION_SCHEMA INNODB_CMP and INNODB_CMP_RESET Tables
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-cmpmem-table.html">
       28.4.7 The INFORMATION_SCHEMA INNODB_CMPMEM and INNODB_CMPMEM_RESET Tables
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-cmp-per-index-table.html">
       28.4.8 The INFORMATION_SCHEMA INNODB_CMP_PER_INDEX and
INNODB_CMP_PER_INDEX_RESET Tables
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-columns-table.html">
       28.4.9 The INFORMATION_SCHEMA INNODB_COLUMNS Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-datafiles-table.html">
       28.4.10 The INFORMATION_SCHEMA INNODB_DATAFILES Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-fields-table.html">
       28.4.11 The INFORMATION_SCHEMA INNODB_FIELDS Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-foreign-table.html">
       28.4.12 The INFORMATION_SCHEMA INNODB_FOREIGN Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-foreign-cols-table.html">
       28.4.13 The INFORMATION_SCHEMA INNODB_FOREIGN_COLS Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-ft-being-deleted-table.html">
       28.4.14 The INFORMATION_SCHEMA INNODB_FT_BEING_DELETED Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-ft-config-table.html">
       28.4.15 The INFORMATION_SCHEMA INNODB_FT_CONFIG Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-ft-default-stopword-table.html">
       28.4.16 The INFORMATION_SCHEMA INNODB_FT_DEFAULT_STOPWORD Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-ft-deleted-table.html">
       28.4.17 The INFORMATION_SCHEMA INNODB_FT_DELETED Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-ft-index-cache-table.html">
       28.4.18 The INFORMATION_SCHEMA INNODB_FT_INDEX_CACHE Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-ft-index-table-table.html">
       28.4.19 The INFORMATION_SCHEMA INNODB_FT_INDEX_TABLE Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-indexes-table.html">
       28.4.20 The INFORMATION_SCHEMA INNODB_INDEXES Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-metrics-table.html">
       28.4.21 The INFORMATION_SCHEMA INNODB_METRICS Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-session-temp-tablespaces-table.html">
       28.4.22 The INFORMATION_SCHEMA INNODB_SESSION_TEMP_TABLESPACES Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-tables-table.html">
       28.4.23 The INFORMATION_SCHEMA INNODB_TABLES Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-tablespaces-table.html">
       28.4.24 The INFORMATION_SCHEMA INNODB_TABLESPACES Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-tablespaces-brief-table.html">
       28.4.25 The INFORMATION_SCHEMA INNODB_TABLESPACES_BRIEF Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-tablestats-table.html">
       28.4.26 The INFORMATION_SCHEMA INNODB_TABLESTATS View
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-temp-table-info-table.html">
       28.4.27 The INFORMATION_SCHEMA INNODB_TEMP_TABLE_INFO Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-trx-table.html">
       28.4.28 The INFORMATION_SCHEMA INNODB_TRX Table
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="information-schema-innodb-virtual-table.html">
       28.4.29 The INFORMATION_SCHEMA INNODB_VIRTUAL Table
      </a>
     </span>
    </dt>
   </dl>
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  <a class="indexterm" name="idm46045077910672">
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  <a class="indexterm" name="idm46045077909184">
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  <p>
   This section provides table definitions for
   <code class="literal">
    INFORMATION_SCHEMA
   </code>
   <code class="literal">
    InnoDB
   </code>
   tables. For related information and examples, see
   <a class="xref" href="innodb-information-schema.html" title="17.15 InnoDB INFORMATION_SCHEMA Tables">
    Section 17.15, “InnoDB INFORMATION_SCHEMA Tables”
   </a>
   .
  </p>
  <p>
   <code class="literal">
    INFORMATION_SCHEMA
   </code>
   <code class="literal">
    InnoDB
   </code>
   tables can be used to monitor ongoing
   <code class="literal">
    InnoDB
   </code>
   activity, to detect inefficiencies before they turn into issues, or
    to troubleshoot performance and capacity issues. As your database
    becomes bigger and busier, running up against the limits of your
    hardware capacity, you monitor and tune these aspects to keep the
    database running smoothly.
  </p>
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