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<li class="toctree-l2"><a class="reference internal" href="#replace">replace</a></li>
<li class="toctree-l2"><a class="reference internal" href="#split">split</a></li>
<li class="toctree-l2"><a class="reference internal" href="#left">left</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#substring">substring</a></li>
<li class="toctree-l2"><a class="reference internal" href="#rtrim">rTrim</a></li>
<li class="toctree-l2"><a class="reference internal" href="#ltrim">lTrim</a></li>
<li class="toctree-l2"><a class="reference internal" href="#trim">trim</a></li>
<li class="toctree-l2"><a class="reference internal" href="#tolower">toLower</a></li>
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<div class="tex2jax_ignore mathjax_ignore section" id="string-functions">
<h1>String Functions<a class="headerlink" href="#string-functions" title="Permalink to this headline"></a></h1>
<div class="section" id="replace">
<h2>replace<a class="headerlink" href="#replace" title="Permalink to this headline"></a></h2>
<p>replace() returns a string in which all occurrences of a specified string in the original string have been replaced by another (specified) string.</p>
<p>Syntax: **<code>replace(original, search, replace)</code></strong></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string.
</td>
</tr>
<tr>
<td>search
</td>
<td>An expression that specifies the string to be replaced in original.
</td>
</tr>
<tr>
<td>replace
</td>
<td>An expression that specifies the replacementstring.
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>If any argument is null, null will be returned.</p></li>
<li><p>If search is not found in original, original will be returned.</p></li>
</ul>
<table>
<tr>
</tr>
</table>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN replace(&#39;hello&#39;, &#39;l&#39;, &#39;w&#39;)
$$) as (str_array agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>new_str
</td>
</tr>
<tr>
<td>“Hewwo”
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="split">
<h2>split<a class="headerlink" href="#split" title="Permalink to this headline"></a></h2>
<p>split() returns a list of strings resulting from the splitting of the original string around matches of the given delimiter.</p>
<p>Syntax: <code class="docutils literal notranslate"><span class="pre">split(original,</span> <span class="pre">split_delimiter)</span></code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="nb">list</span> <span class="n">of</span> <span class="n">agtype</span> <span class="n">strings</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string.
</td>
</tr>
<tr>
<td>split_delimiter
</td>
<td>The string with which to split original.
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>split(null, splitDelimiter) and split(original, null) both return null</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN split(&#39;one,two&#39;, &#39;,&#39;)
$$) as (split_list agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td><strong>split_list</strong>
</td>
</tr>
<tr>
<td>[“one”,”two”]
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="left">
<h2>left<a class="headerlink" href="#left" title="Permalink to this headline"></a></h2>
<p>left() returns a string containing the specified number of leftmost characters of the original string.</p>
<p>Syntax: <code class="docutils literal notranslate"><span class="pre">left(original,</span> <span class="pre">length)</span></code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string.
</td>
</tr>
<tr>
<td>n
</td>
<td>An expression that returns a positive integer.
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>left(null, length) and left(null, null) both return null</p></li>
<li><p>left(original, null) will raise an error.</p></li>
<li><p>If length is not a positive integer, an error is raised.</p></li>
<li><p>If length exceeds the size of original, original is returned.</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN left(&#39;Hello&#39;, 3)
$$) as (new_str agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>new_str
</td>
</tr>
<tr>
<td>“Hel”
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="right">
<h2>right<a class="headerlink" href="#right" title="Permalink to this headline"></a></h2>
<p>right() returns a string containing the specified number of rightmost characters of the original string.</p>
<p>Syntax: <code class="docutils literal notranslate"><span class="pre">right(original,</span> <span class="pre">length)</span></code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string.
</td>
</tr>
<tr>
<td>n
</td>
<td>An expression that returns a positive integer.
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>right(null, length) and right(null, null) both return null</p></li>
<li><p>right(original, null) will raise an error.</p></li>
<li><p>If length is not a positive integer, an error is raised.</p></li>
<li><p>If length exceeds the size of original, original is returned.</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN right(&#39;hello&#39;, 3)
$$) as (new_str agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>new_str
</td>
</tr>
<tr>
<td>“llo”
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="substring">
<h2>substring<a class="headerlink" href="#substring" title="Permalink to this headline"></a></h2>
<p>substring() returns a substring of the original string, beginning with a 0-based index start and length.</p>
<p>Syntax: <code>substring(original, <strong>start</strong> [, <strong>length</strong>])</code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string.
</td>
</tr>
<tr>
<td>start
</td>
<td>An expression denoting the position at which the substring will begin.
</td>
</tr>
<tr>
<td>length
</td>
<td>An optional expression that returns a positive integer, denoting how many characters of the original expression will be returned.
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>start uses a zero-based index.</p></li>
<li><p>If length is omitted, the function returns the substring starting at the position given by start and extending to the end of original.</p></li>
<li><p>If original is null, null is returned.</p></li>
<li><p>If either start or length is null or a negative integer, an error is raised.</p></li>
<li><p>If start is 0, the substring will start at the beginning of original.</p></li>
<li><p>If length is 0, the empty string will be returned.</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN substring(&#39;hello&#39;, 1, 3), substring(&#39;hello&#39;, 2)
$$) as (sub_str1 agtype, sub_str2 agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>sub_str1
</td>
<td>sub_str2
</td>
</tr>
<tr>
<td>‘ell’
</td>
<td>‘llo’
</td>
</tr>
<tr>
<td colspan="2" >1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="rtrim">
<h2>rTrim<a class="headerlink" href="#rtrim" title="Permalink to this headline"></a></h2>
<p>rTrim() returns the original string with trailing whitespace removed.</p>
<p>Syntax: rTrim(original)</p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>rTrim(null) returns null</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN rTrim(&#39; hello &#39;)
$$) as (trimmed_str agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>trimmed_str
</td>
</tr>
<tr>
<td>" hello"
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="ltrim">
<h2>lTrim<a class="headerlink" href="#ltrim" title="Permalink to this headline"></a></h2>
<p>lTrim() returns the original string with trailing whitespace removed.</p>
<p>Syntax: <code class="docutils literal notranslate"><span class="pre">lTrim(original)</span></code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">A</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>lTrim(null) returns null</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN lTrim(&#39; hello &#39;)
$$) as (trimmed_str agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>left_trimmed_str
</td>
</tr>
<tr>
<td>“hello ”
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="trim">
<h2>trim<a class="headerlink" href="#trim" title="Permalink to this headline"></a></h2>
<p>trim() returns the original string with leading and trailing whitespace removed.</p>
<p>Syntax: <code class="docutils literal notranslate"><span class="pre">trim(original)</span></code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>trim(null) returns null</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN trim(&#39; hello &#39;)
$$) as (trimmed_str agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>trimmed_str
</td>
</tr>
<tr>
<td>“hello”
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="tolower">
<h2>toLower<a class="headerlink" href="#tolower" title="Permalink to this headline"></a></h2>
<p>toLower() returns the original string in lowercase.</p>
<p>Syntax: <code class="docutils literal notranslate"><span class="pre">toLower(original)</span></code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>toLower(null) returns null</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN toLower(&#39;HELLO&#39;)
$$) as (lower_str agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>lower_str
</td>
</tr>
<tr>
<td>“hello”
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="toupper">
<h2>toUpper<a class="headerlink" href="#toupper" title="Permalink to this headline"></a></h2>
<p>toUpper() returns the original string in lowercase.</p>
<p>Syntax: <code class="docutils literal notranslate"><span class="pre">toUpper(original)</span></code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>toUpper(null) returns null</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN toUpper(&#39;hello&#39;)
$$) as (upper_str agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td><code>upper_str</code>
</td>
</tr>
<tr>
<td>“HELLO”
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="reverse">
<h2>reverse<a class="headerlink" href="#reverse" title="Permalink to this headline"></a></h2>
<p>reverse() returns a string in which the order of all characters in the original string have been reversed.</p>
<p>Syntax: <code class="docutils literal notranslate"><span class="pre">reverse(original)</span></code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">An</span> <span class="n">agtype</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>original
</td>
<td>An expression that returns a string
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>reverse(null) returns null.</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN reverse(&quot;hello&quot;)
$$) as (upper_str agtype);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>upper_str
</td>
</tr>
<tr>
<td>“olleh”
</td>
</tr>
<tr>
<td>1 row(s) returned
</td>
</tr>
</table>
</div>
<div class="section" id="tostring">
<h2>toString<a class="headerlink" href="#tostring" title="Permalink to this headline"></a></h2>
<p>toString() converts an integer, float or boolean value to a string.</p>
<p>Syntax:<code class="docutils literal notranslate"><span class="pre">toString(expression)</span></code></p>
<p>Returns:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">A</span> <span class="n">String</span><span class="o">.</span>
</pre></div>
</div>
<p>Arguments:</p>
<table>
<tr>
<td>Name
</td>
<td>Description
</td>
</tr>
<tr>
<td>expression
</td>
<td>An expression that returns a number, a boolean, or a string.
</td>
</tr>
</table>
<p>Considerations:</p>
<ul class="simple">
<li><p>toString(null) returns null</p></li>
<li><p>If expression is a string, it will be returned unchanged.</p></li>
</ul>
<p>Query:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>SELECT *
FROM cypher(&#39;graph_name&#39;, $$
RETURN toString(11.5),toString(&#39;a string&#39;), toString(true)
$$) as (float_to_str agtype, str_to_str agtype, bool_to_string);
</pre></div>
</div>
<p>Result:</p>
<table>
<tr>
<td>float_to_str
</td>
<td>str_to_str
</td>
<td>bool_to_str
</td>
</tr>
<tr>
<td>"11.5"
</td>
<td>"a string"
</td>
<td>"true"
</td>
</tr>
<tr>
<td colspan="3" >1 row(s) returned
</td>
</tr>
</table>
</div>
</div>
</div>
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