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<li><a href="/docs/2.9.0/machine-learning/binary-classification/ann" class=''>ANN (Approximate Nearest Neighbor)</a></li>
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<article data-swiftype-index='true'>
<a class='edit-link' href="https://github.com/apache/ignite/tree/IGNITE-7595/docs/_docs/net-specific/net-linq.adoc" target="_blank">Edit</a>
<h1>Apache Ignite.NET LINQ Provider</h1>
<div class="sect1">
<h2 id="overview">Overview</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Apache Ignite.NET includes a LINQ provider that is integrated with Ignite SQL APIs. You can avoid dealing with SQL
syntax directly and write queries in C# with LINQ. The Ignite LINQ provider supports all features of ANSI-99 SQL including
distributed joins, groupings, aggregates, sorting, and more.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="installation">Installation</h2>
<div class="sectionbody">
<div class="ulist">
<ul>
<li>
<p>If you use the Ignite <strong>binary distribution</strong>: add a reference to <code>Apache.Ignite.Linq.dll</code></p>
</li>
<li>
<p>If you use <strong>NuGet</strong>: <code>Install-Package Apache.Ignite.Linq</code></p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect1">
<h2 id="configuration">Configuration</h2>
<div class="sectionbody">
<div class="paragraph">
<p>SQL indexes need to be configured the same way as for regular SQL queries, see <a href="/docs/2.9.0/SQL/indexes">Defining Indexes section</a>
for details.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="usage">Usage</h2>
<div class="sectionbody">
<div class="paragraph">
<p><code>Apache.Ignite.Linq.CacheLinqExtensions</code> class is an entry point for the LINQ provider.
Obtain a queryable instance over an Ignite cache by calling the <code>AsCacheQueryable</code> method, and use LINQ on it:</p>
</div>
<code-tabs><code-tab data-tab='C#'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="n">ICache</span><span class="p">&lt;</span><span class="n">EmployeeKey</span><span class="p">,</span> <span class="n">Employee</span><span class="p">&gt;</span> <span class="n">employeeCache</span> <span class="p">=</span> <span class="n">ignite</span><span class="p">.</span><span class="n">GetCache</span><span class="p">&lt;</span><span class="n">EmployeeKey</span><span class="p">,</span> <span class="n">Employee</span><span class="p">&gt;(</span><span class="n">CacheName</span><span class="p">);</span>
<span class="n">IQueryable</span><span class="p">&lt;</span><span class="n">ICacheEntry</span><span class="p">&lt;</span><span class="n">EmployeeKey</span><span class="p">,</span> <span class="n">Employee</span><span class="p">&gt;&gt;</span> <span class="n">queryable</span> <span class="p">=</span> <span class="n">cache</span><span class="p">.</span><span class="nf">AsCacheQueryable</span><span class="p">();</span>
<span class="n">Employee</span><span class="p">[]</span> <span class="n">interns</span> <span class="p">=</span> <span class="n">queryable</span><span class="p">.</span><span class="nf">Where</span><span class="p">(</span><span class="n">emp</span> <span class="p">=&gt;</span> <span class="n">emp</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">IsIntern</span><span class="p">).</span><span class="nf">ToArray</span><span class="p">();</span></code></pre>
</div>
</div></code-tab></code-tabs>
<div class="admonitionblock caution">
<table>
<tr>
<td class="icon">
<div class="title">Caution</div>
</td>
<td class="content">
<div class="paragraph">
<p>You can use LINQ directly on the cache instance, without calling <code>AsCacheQueryable()</code>. However, this will result in LINQ
to Objects query that fetches and processes entire cache data set locally, which is very inefficient.</p>
</div>
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="introspection">Introspection</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The Ignite LINQ provider uses <code>ICache.QueryFields</code> underneath. You can examine produced <code>SqlFieldsQuery</code> by casting
<code>IQueryable</code> to <code>ICacheQueryable</code> at any point before materializing statements (<code>ToList</code>, <code>ToArray</code>, etc):</p>
</div>
<code-tabs><code-tab data-tab='C#'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="c1">// Create query</span>
<span class="kt">var</span> <span class="n">query</span> <span class="p">=</span> <span class="n">ignite</span><span class="p">.</span><span class="n">GetCache</span><span class="p">&lt;</span><span class="n">EmployeeKey</span><span class="p">,</span> <span class="n">Employee</span><span class="p">&gt;(</span><span class="n">CacheName</span><span class="p">).</span><span class="nf">AsCacheQueryable</span><span class="p">().</span><span class="nf">Where</span><span class="p">(</span><span class="n">emp</span> <span class="p">=&gt;</span> <span class="n">emp</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">IsIntern</span><span class="p">);</span>
<span class="c1">// Cast to ICacheQueryable</span>
<span class="kt">var</span> <span class="n">cacheQueryable</span> <span class="p">=</span> <span class="p">(</span><span class="n">ICacheQueryable</span><span class="p">)</span> <span class="n">query</span><span class="p">;</span>
<span class="c1">// Get resulting fields query</span>
<span class="n">SqlFieldsQuery</span> <span class="n">fieldsQuery</span> <span class="p">=</span> <span class="n">cacheQueryable</span><span class="p">.</span><span class="nf">GetFieldsQuery</span><span class="p">();</span>
<span class="c1">// Examine generated SQL</span>
<span class="n">Console</span><span class="p">.</span><span class="nf">WriteLine</span><span class="p">(</span><span class="n">fieldsQuery</span><span class="p">.</span><span class="n">Sql</span><span class="p">);</span>
<span class="c1">// Output: select _T0._key, _T0._val from "persons".Person as _T0 where _T0.IsIntern</span></code></pre>
</div>
</div></code-tab></code-tabs>
</div>
</div>
<div class="sect1">
<h2 id="projections">Projections</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Simple <code>Where</code> queries operate on <code>ICacheEntry</code> objects. You can select Key, Value, or any of the Key and Value fields
separately. Multiple fields can be selected using anonymous types.</p>
</div>
<code-tabs><code-tab data-tab='C#'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">query</span> <span class="p">=</span> <span class="n">ignite</span><span class="p">.</span><span class="n">GetCache</span><span class="p">&lt;</span><span class="n">EmployeeKey</span><span class="p">,</span> <span class="n">Employee</span><span class="p">&gt;(</span><span class="n">CacheName</span><span class="p">).</span><span class="nf">AsCacheQueryable</span><span class="p">().</span><span class="nf">Where</span><span class="p">(</span><span class="n">emp</span> <span class="p">=&gt;</span> <span class="n">emp</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">IsIntern</span><span class="p">);</span>
<span class="n">IQueryable</span><span class="p">&lt;</span><span class="n">EmployeeKey</span><span class="p">&gt;</span> <span class="n">keys</span> <span class="p">=</span> <span class="n">query</span><span class="p">.</span><span class="nf">Select</span><span class="p">(</span><span class="n">emp</span> <span class="p">=&gt;</span> <span class="n">emp</span><span class="p">.</span><span class="n">Key</span><span class="p">);</span>
<span class="n">IQueryable</span><span class="p">&lt;</span><span class="n">Employee</span><span class="p">&gt;</span> <span class="n">values</span> <span class="p">=</span> <span class="n">query</span><span class="p">.</span><span class="nf">Select</span><span class="p">(</span><span class="n">emp</span> <span class="p">=&gt;</span> <span class="n">emp</span><span class="p">.</span><span class="n">Value</span><span class="p">);</span>
<span class="n">IQueryable</span><span class="p">&lt;</span><span class="kt">string</span><span class="p">&gt;</span> <span class="n">names</span> <span class="p">=</span> <span class="n">values</span><span class="p">.</span><span class="nf">Select</span><span class="p">(</span><span class="n">emp</span> <span class="p">=&gt;</span> <span class="n">emp</span><span class="p">.</span><span class="n">Name</span><span class="p">);</span>
<span class="kt">var</span> <span class="n">custom</span> <span class="p">=</span> <span class="n">query</span><span class="p">.</span><span class="nf">Select</span><span class="p">(</span><span class="n">emp</span> <span class="p">=&gt;</span> <span class="k">new</span> <span class="p">{</span><span class="n">Id</span> <span class="p">=</span> <span class="n">emp</span><span class="p">.</span><span class="n">Key</span><span class="p">,</span> <span class="n">Name</span> <span class="p">=</span> <span class="n">emp</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">Name</span><span class="p">,</span> <span class="n">Age</span> <span class="p">=</span> <span class="n">emp</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">Age</span><span class="p">});</span></code></pre>
</div>
</div></code-tab></code-tabs>
</div>
</div>
<div class="sect1">
<h2 id="compiled-queries">Compiled Queries</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The LINQ provider causes certain overhead caused by expression parsing and SQL generation. You may want to eliminate this
overhead for frequently used queries.</p>
</div>
<div class="paragraph">
<p>The <code>Apache.Ignite.Linq.CompiledQuery</code> class supports queries compilation. Call the <code>Compile</code> method to create a new delegate
to represent the compiled query. All query parameters should be in the delegate parameters.</p>
</div>
<code-tabs><code-tab data-tab='C#'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">queryable</span> <span class="p">=</span> <span class="n">ignite</span><span class="p">.</span><span class="n">GetCache</span><span class="p">&lt;</span><span class="n">EmployeeKey</span><span class="p">,</span> <span class="n">Employee</span><span class="p">&gt;(</span><span class="n">CacheName</span><span class="p">).</span><span class="nf">AsCacheQueryable</span><span class="p">();</span>
<span class="c1">// Regular query</span>
<span class="kt">var</span> <span class="n">persons</span> <span class="p">=</span> <span class="n">queryable</span><span class="p">.</span><span class="nf">Where</span><span class="p">(</span><span class="n">emp</span> <span class="p">=&gt;</span> <span class="n">emp</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">Age</span> <span class="p">&gt;</span> <span class="m">21</span><span class="p">);</span>
<span class="kt">var</span> <span class="n">result</span> <span class="p">=</span> <span class="n">persons</span><span class="p">.</span><span class="nf">ToArray</span><span class="p">();</span>
<span class="c1">// Corresponding compiled query</span>
<span class="kt">var</span> <span class="n">compiledQuery</span> <span class="p">=</span> <span class="n">CompiledQuery</span><span class="p">.</span><span class="nf">Compile</span><span class="p">((</span><span class="kt">int</span> <span class="n">age</span><span class="p">)</span> <span class="p">=&gt;</span> <span class="n">queryable</span><span class="p">.</span><span class="nf">Where</span><span class="p">(</span><span class="n">emp</span> <span class="p">=&gt;</span> <span class="n">emp</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">Age</span> <span class="p">&gt;</span> <span class="n">age</span><span class="p">));</span>
<span class="n">IQueryCursor</span><span class="p">&lt;</span><span class="n">ICacheEntry</span><span class="p">&lt;</span><span class="n">EmployeeKey</span><span class="p">,</span> <span class="n">Employee</span><span class="p">&gt;&gt;</span> <span class="n">cursor</span> <span class="p">=</span> <span class="nf">compiledQuery</span><span class="p">(</span><span class="m">21</span><span class="p">);</span>
<span class="n">result</span> <span class="p">=</span> <span class="n">cursor</span><span class="p">.</span><span class="nf">ToArray</span><span class="p">();</span></code></pre>
</div>
</div></code-tab></code-tabs>
<div class="paragraph">
<p>Refer to the <a href="https://ptupitsyn.github.io/LINQ-vs-SQL-in-Ignite/" target="_blank" rel="noopener">LINQ vs SQL blog post</a> for more details
on the LINQ provider performance.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="joins">Joins</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The LINQ provider support JOINs that span several caches/tables and nodes.</p>
</div>
<code-tabs><code-tab data-tab='C#'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">persons</span> <span class="p">=</span> <span class="n">ignite</span><span class="p">.</span><span class="n">GetCache</span><span class="p">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="n">Person</span><span class="p">&gt;(</span><span class="s">"personCache"</span><span class="p">).</span><span class="nf">AsCacheQueryable</span><span class="p">();</span>
<span class="kt">var</span> <span class="n">orgs</span> <span class="p">=</span> <span class="n">ignite</span><span class="p">.</span><span class="n">GetCache</span><span class="p">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="n">Organization</span><span class="p">&gt;(</span><span class="s">"orgCache"</span><span class="p">).</span><span class="nf">AsCacheQueryable</span><span class="p">();</span>
<span class="c1">// SQL join on Person and Organization to find persons working for Apache</span>
<span class="kt">var</span> <span class="n">qry</span> <span class="p">=</span> <span class="k">from</span> <span class="n">person</span> <span class="k">in</span> <span class="n">persons</span> <span class="k">from</span> <span class="n">org</span> <span class="k">in</span> <span class="n">orgs</span>
<span class="k">where</span> <span class="n">person</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">OrgId</span> <span class="p">==</span> <span class="n">org</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">Id</span>
<span class="p">&amp;&amp;</span> <span class="n">org</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">Name</span> <span class="p">==</span> <span class="s">"Apache"</span>
<span class="k">select</span> <span class="n">person</span>
<span class="k">foreach</span> <span class="p">(</span><span class="kt">var</span> <span class="n">cacheEntry</span> <span class="k">in</span> <span class="n">qry</span><span class="p">)</span>
<span class="n">Console</span><span class="p">.</span><span class="nf">WriteLine</span><span class="p">(</span><span class="n">cacheEntry</span><span class="p">.</span><span class="n">Value</span><span class="p">);</span>
<span class="c1">// Same query with method syntax</span>
<span class="n">qry</span> <span class="p">=</span> <span class="n">persons</span><span class="p">.</span><span class="nf">Join</span><span class="p">(</span><span class="n">orgs</span><span class="p">,</span> <span class="n">person</span> <span class="p">=&gt;</span> <span class="n">person</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">OrgId</span><span class="p">,</span> <span class="n">org</span> <span class="p">=&gt;</span> <span class="n">org</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">Id</span><span class="p">,</span>
<span class="p">(</span><span class="n">person</span><span class="p">,</span> <span class="n">org</span><span class="p">)</span> <span class="p">=&gt;</span> <span class="k">new</span> <span class="p">{</span><span class="n">person</span><span class="p">,</span> <span class="n">org</span><span class="p">}).</span><span class="nf">Where</span><span class="p">(</span><span class="n">p</span> <span class="p">=&gt;</span> <span class="n">p</span><span class="p">.</span><span class="n">org</span><span class="p">.</span><span class="n">Name</span> <span class="p">==</span> <span class="s">"Apache"</span><span class="p">).</span><span class="nf">Select</span><span class="p">(</span><span class="n">p</span> <span class="p">=&gt;</span> <span class="n">p</span><span class="p">.</span><span class="n">person</span><span class="p">);</span></code></pre>
</div>
</div></code-tab></code-tabs>
</div>
</div>
<div class="sect1">
<h2 id="contains">Contains</h2>
<div class="sectionbody">
<div class="paragraph">
<p><code>ICollection.Contains</code> is supported, which is useful when we want to retrieve data by a set of ids, for example:</p>
</div>
<code-tabs><code-tab data-tab='C#'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">persons</span> <span class="p">=</span> <span class="n">ignite</span><span class="p">.</span><span class="n">GetCache</span><span class="p">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="n">Person</span><span class="p">&gt;(</span><span class="s">"personCache"</span><span class="p">).</span><span class="nf">AsCacheQueryable</span><span class="p">();</span>
<span class="kt">var</span> <span class="n">ids</span> <span class="p">=</span> <span class="k">new</span> <span class="kt">int</span><span class="p">[]</span> <span class="p">{</span><span class="m">1</span><span class="p">,</span> <span class="m">20</span><span class="p">,</span> <span class="m">56</span><span class="p">};</span>
<span class="kt">var</span> <span class="n">personsByIds</span> <span class="p">=</span> <span class="n">persons</span><span class="p">.</span><span class="nf">Where</span><span class="p">(</span><span class="n">p</span> <span class="p">=&gt;</span> <span class="n">ids</span><span class="p">.</span><span class="nf">Contains</span><span class="p">(</span><span class="n">p</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">Id</span><span class="p">));</span></code></pre>
</div>
</div></code-tab></code-tabs>
<div class="paragraph">
<p>This query translates into the <code>&#8230;&#8203; where Id IN (?, ?, ?)</code> command. However, keep in mind, that this form cannot be used
in compiled queries because of variable argument number. Better alternative is to use <code>Join</code> on the <code>ids</code> collection:</p>
</div>
<code-tabs><code-tab data-tab='C#'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">persons</span> <span class="p">=</span> <span class="n">ignite</span><span class="p">.</span><span class="n">GetCache</span><span class="p">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="n">Person</span><span class="p">&gt;(</span><span class="s">"personCache"</span><span class="p">).</span><span class="nf">AsCacheQueryable</span><span class="p">();</span>
<span class="kt">var</span> <span class="n">ids</span> <span class="p">=</span> <span class="k">new</span> <span class="kt">int</span><span class="p">[]</span> <span class="p">{</span><span class="m">1</span><span class="p">,</span> <span class="m">20</span><span class="p">,</span> <span class="m">56</span><span class="p">};</span>
<span class="kt">var</span> <span class="n">personsByIds</span> <span class="p">=</span> <span class="n">persons</span><span class="p">.</span><span class="nf">Join</span><span class="p">(</span><span class="n">ids</span><span class="p">,</span>
<span class="n">person</span> <span class="p">=&gt;</span> <span class="n">person</span><span class="p">.</span><span class="n">Value</span><span class="p">.</span><span class="n">Id</span><span class="p">,</span>
<span class="n">id</span> <span class="p">=&gt;</span> <span class="n">id</span><span class="p">,</span>
<span class="p">(</span><span class="n">person</span><span class="p">,</span> <span class="n">id</span><span class="p">)</span> <span class="p">=&gt;</span> <span class="n">person</span><span class="p">);</span></code></pre>
</div>
</div></code-tab></code-tabs>
<div class="paragraph">
<p>This LINQ query translates to a temp table join:
<code>select _T0._KEY, _T0._VAL from "person".Person as _T0 inner join table (F0 int = ?) _T1 on (_T1.F0 = _T0.ID)</code>,
and has a single array parameter, so the plan can be cached properly, and compiled queries are also allowed.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="supported-sql-functions">Supported SQL Functions</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Below is a list of .NET functions and their SQL equivalents that are supported by the Ignite LINQ provider.</p>
</div>
<table class="tableblock frame-all grid-all stripes-even stretch">
<colgroup>
<col style="width: 25%;">
<col style="width: 75%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top"><code>String.Length</code></th>
<th class="tableblock halign-left valign-top"><code>LENGTH</code></th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.ToLower</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>LOWER</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.ToUpper</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>UPPER</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.StartsWith("foo")</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>LIKE 'foo%'</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.EndsWith("foo")</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>LIKE '%foo'</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.Contains("foo")</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>LIKE '%foo%'</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.IndexOf("abc")</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>INSTR(MyField, 'abc') - 1</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.IndexOf("abc", 3)</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>INSTR(MyField, 'abc', 3) - 1</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.Substring("abc", 4)</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>SUBSTRING(MyField, 4 + 1)</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.Substring("abc", 4, 7)</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>SUBSTRING(MyField, 4 + 1, 7)</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.Trim()</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>TRIM</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.TrimStart()</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>LTRIM</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.TrimEnd()</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>RTRIM</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.Trim('x')</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>TRIM(MyField, 'x')</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.TrimStart('x')</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>LTRIM(MyField, 'x')</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.TrimEnd('x')</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>RTRIM(MyField, 'x')</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.Replace</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>REPLACE</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.PadLeft</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>LPAD</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>String.PadRight</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>RPAD</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Regex.Replace</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>REGEXP_REPLACE</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Regex.IsMatch</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>REGEXP_LIKE</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Abs</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>ABS</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Acos</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>ACOS</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Asin</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>ASIN</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Atan</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>ATAN</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Atan2</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>ATAN2</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Ceiling</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>CEILING</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Cos</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>COS</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Cosh</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>COSH</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Exp</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>EXP</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Floor</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>FLOOR</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Log</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>LOG</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Log10</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>LOG10</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Pow</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>POWER</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Round</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>ROUND</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Sign</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>SIGN</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Sin</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>SIN</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Sinh</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>SINH</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Sqrt</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>SQRT</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Tan</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>TAN</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Tanh</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>TANH</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>Math.Truncate</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>TRUNCATE</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DateTime.Year</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>YEAR</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DateTime.Month</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>MONTH</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DateTime.Day</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DAY_OF_MONTH</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DateTime.DayOfYear</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DAY_OF_YEAR</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DateTime.DayOfWeek</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DAY_OF_WEEK - 1</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DateTime.Hour</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>HOUR</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DateTime.Minute</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>MINUTE</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>DateTime.Second</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>SECOND</code></p></td>
</tr>
</tbody>
</table>
</div>
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