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<b>MsetCommand: Contents</b><br> <a href="#MSET _key1_ _value1_ _key2_ _value2_ ... _keyN_ _valueN_ (Redis >">MSET _key1_ _value1_ _key2_ _value2_ ... _keyN_ _valueN_ (Redis ></a><br> <a href="#MSETNX _key1_ _value1_ _key2_ _value2_ ... _keyN_ _valueN_ (Redis >">MSETNX _key1_ _value1_ _key2_ _value2_ ... _keyN_ _valueN_ (Redis ></a><br> <a href="#MSET Return value">MSET Return value</a><br> <a href="#MSETNX Return value">MSETNX Return value</a>
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<h1 class="wikiname">MsetCommand</h1>
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#sidebar <a href="StringCommandsSidebar.html">StringCommandsSidebar</a><h1><a name="MSET _key1_ _value1_ _key2_ _value2_ ... _keyN_ _valueN_ (Redis >">MSET _key1_ _value1_ _key2_ _value2_ ... _keyN_ _valueN_ (Redis ></a></h1> 1.1) =
<h1><a name="MSETNX _key1_ _value1_ _key2_ _value2_ ... _keyN_ _valueN_ (Redis >">MSETNX _key1_ _value1_ _key2_ _value2_ ... _keyN_ _valueN_ (Redis ></a></h1> 1.1) =
<i>Time complexity: O(1) to set every key</i><blockquote>Set the the respective keys to the respective values. MSET will replace oldvalues with new values, while MSETNX will not perform any operation at alleven if just a single key already exists.</blockquote>
<blockquote>Because of this semantic MSETNX can be used in order to set different keysrepresenting different fields of an unique logic object in a way thatensures that either all the fields or none at all are set.</blockquote>
<blockquote>Both MSET and MSETNX are atomic operations. This means that for instanceif the keys A and B are modified, another client talking to Redis can eithersee the changes to both A and B at once, or no modification at all.</blockquote>
<h2><a name="MSET Return value">MSET Return value</a></h2><a href="ReplyTypes.html">Status code reply</a> Basically +OK as MSET can't fail<h2><a name="MSETNX Return value">MSETNX Return value</a></h2><a href="ReplyTypes.html">Integer reply</a>, specifically:<br/><br/><pre class="codeblock python" name="code">
1 if the all the keys were set
0 if no key was set (at least one key already existed)
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