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| <article data-swiftype-index='true'> |
| <a class='edit-link' href="https://github.com/apache/ignite/tree/IGNITE-7595/docs/_docs/sql-reference/dml.adoc" target="_blank">Edit</a> |
| |
| <h1>Data Manipulation Language (DML)</h1> |
| |
| <div id="preamble"> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>This section walks you through all data manipulation language (DML) commands supported by Apache Ignite 3.0 Alpha.</p> |
| </div> |
| <div class="admonitionblock warning"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Warning</div> |
| </td> |
| <td class="content"> |
| Currently, <code>WITH</code> and <code>MERGE</code> commands are not supported. |
| </td> |
| </tr> |
| </table> |
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| <div class="sect1"> |
| <h2 id="select">SELECT</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Retrieves data from a table or multiple tables.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="sql"><span class="k">SELECT</span> <span class="p">[</span> <span class="n">hintComment</span> <span class="p">]</span> <span class="p">[</span> <span class="n">STREAM</span> <span class="p">]</span> <span class="p">[</span> <span class="k">ALL</span> <span class="o">|</span> <span class="k">DISTINCT</span> <span class="p">]</span> |
| <span class="err">{</span> <span class="o">*</span> <span class="o">|</span> <span class="n">projectItem</span> <span class="p">[,</span> <span class="n">projectItem</span> <span class="p">]</span><span class="o">*</span> <span class="err">}</span> |
| <span class="k">FROM</span> <span class="n">tableExpression</span> |
| <span class="p">[</span> <span class="k">WHERE</span> <span class="n">booleanExpression</span> <span class="p">]</span> |
| <span class="p">[</span> <span class="k">GROUP</span> <span class="k">BY</span> <span class="err">{</span> <span class="n">groupItem</span> <span class="p">[,</span> <span class="n">groupItem</span> <span class="p">]</span><span class="o">*</span> <span class="err">}</span> <span class="p">]</span> |
| <span class="p">[</span> <span class="k">HAVING</span> <span class="n">booleanExpression</span> <span class="p">]</span></code></pre> |
| </div> |
| </div> |
| <div class="sect2"> |
| <h3 id="joins">JOINs</h3> |
| <div class="paragraph"> |
| <p>Ignite supports colocated and non-colocated distributed SQL joins. Furthermore, if the data resides in different tables (caches), Ignite allows for cross-table joins as well. |
| Joins between partitioned and replicated data sets always work without any limitations. |
| However, if you join partitioned data sets, then you have to make sure that the keys you are joining on are either colocated or make sure you switched on the non-colocated joins parameter for a query.</p> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="insert">INSERT</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Inserts data into a table.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="sql"><span class="err">{</span> <span class="k">INSERT</span> <span class="err">}</span> <span class="k">INTO</span> <span class="n">tablePrimary</span> |
| <span class="p">[</span> <span class="s1">'('</span> <span class="k">column</span> <span class="p">[,</span> <span class="k">column</span> <span class="p">]</span><span class="o">*</span> <span class="s1">')'</span> <span class="p">]</span> |
| <span class="n">query</span></code></pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="update">UPDATE</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Updates data in a table.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="sql"><span class="k">UPDATE</span> <span class="n">tablePrimary</span> |
| <span class="k">SET</span> <span class="n">assign</span> <span class="p">[,</span> <span class="n">assign</span> <span class="p">]</span><span class="o">*</span> |
| <span class="p">[</span> <span class="k">WHERE</span> <span class="n">booleanExpression</span> <span class="p">]</span></code></pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="delete">DELETE</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Deletes data from a table.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="sql"><span class="k">DELETE</span> <span class="k">FROM</span> <span class="n">tablePrimary</span> <span class="p">[</span> <span class="p">[</span> <span class="k">AS</span> <span class="p">]</span> <span class="k">alias</span> <span class="p">]</span> |
| <span class="p">[</span> <span class="k">WHERE</span> <span class="n">booleanExpression</span> <span class="p">]</span></code></pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="copyright"> |
| © 2022 The Apache Software Foundation.<br/> |
| Apache, Apache Ignite, the Apache feather and the Apache Ignite logo are either registered trademarks or trademarks of The Apache Software Foundation. |
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| </li> |
| <li><a href="#insert">INSERT</a></li> |
| <li><a href="#update">UPDATE</a></li> |
| <li><a href="#delete">DELETE</a></li> |
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