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| <div class="section" id="the-cassandra-query-language-cql"> |
| <span id="cql"></span><h1>The Cassandra Query Language (CQL)<a class="headerlink" href="#the-cassandra-query-language-cql" title="Permalink to this headline">¶</a></h1> |
| <p>This document describes the Cassandra Query Language (CQL) <a class="footnote-reference brackets" href="#id2" id="id1">1</a>. Note that this document describes the last version of |
| the languages. However, the <a class="reference external" href="#changes">changes</a> section provides the diff between the different versions of CQL.</p> |
| <p>CQL offers a model close to SQL in the sense that data is put in <em>tables</em> containing <em>rows</em> of <em>columns</em>. For |
| that reason, when used in this document, these terms (tables, rows and columns) have the same definition than they have |
| in SQL. But please note that as such, they do <strong>not</strong> refer to the concept of rows and columns found in the deprecated |
| thrift API (and earlier version 1 and 2 of CQL).</p> |
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| <li class="toctree-l1"><a class="reference internal" href="types.html">Data Types</a><ul> |
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| <li class="toctree-l2"><a class="reference internal" href="types.html#working-with-dates">Working with dates</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="types.html#working-with-times">Working with times</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="types.html#working-with-durations">Working with durations</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="types.html#collections">Collections</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="types.html#user-defined-types">User-Defined Types</a></li> |
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| <li class="toctree-l2"><a class="reference internal" href="types.html#custom-types">Custom Types</a></li> |
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| <li class="toctree-l1"><a class="reference internal" href="ddl.html">Data Definition</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="ddl.html#common-definitions">Common definitions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="ddl.html#create-keyspace">CREATE KEYSPACE</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="ddl.html#use">USE</a></li> |
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| <li class="toctree-l2"><a class="reference internal" href="ddl.html#create-table">CREATE TABLE</a></li> |
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| <li class="toctree-l2"><a class="reference internal" href="dml.html#select">SELECT</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="dml.html#insert">INSERT</a></li> |
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| <li class="toctree-l2"><a class="reference internal" href="mvs.html#drop-materialized-view">DROP MATERIALIZED VIEW</a></li> |
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| <li class="toctree-l2"><a class="reference internal" href="json.html#json-encoding-of-cassandra-data-types">JSON Encoding of Cassandra Data Types</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="json.html#the-fromjson-function">The fromJson() Function</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="json.html#the-tojson-function">The toJson() Function</a></li> |
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| <li class="toctree-l1"><a class="reference internal" href="appendices.html">Appendices</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="appendices.html#appendix-a-cql-keywords">Appendix A: CQL Keywords</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="appendices.html#appendix-b-cql-reserved-types">Appendix B: CQL Reserved Types</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="appendices.html#appendix-c-dropping-compact-storage">Appendix C: Dropping Compact Storage</a></li> |
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| <li class="toctree-l1"><a class="reference internal" href="changes.html">Changes</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id1">3.4.4</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id2">3.4.3</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id5">3.4.2</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id6">3.4.1</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id7">3.4.0</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id8">3.3.1</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id9">3.3.0</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id10">3.2.0</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id11">3.1.7</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id12">3.1.6</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id13">3.1.5</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id14">3.1.4</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id15">3.1.3</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id16">3.1.2</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id17">3.1.1</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id18">3.1.0</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id19">3.0.5</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id20">3.0.4</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id21">3.0.3</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id22">3.0.2</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#id23">3.0.1</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="changes.html#versioning">Versioning</a></li> |
| </ul> |
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| </ul> |
| </div> |
| <dl class="footnote brackets"> |
| <dt class="label" id="id2"><span class="brackets"><a class="fn-backref" href="#id1">1</a></span></dt> |
| <dd><p>Technically, this document CQL version 3, which is not backward compatible with CQL version 1 and 2 (which have |
| been deprecated and remove) and differs from it in numerous ways.</p> |
| </dd> |
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