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antirez
2009-12-05 16:58:10 +01:00
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doc/ZaddCommand.html
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<div id="pagecontent">
<div class="index">
<!-- This is a (PRE) block. Make sure it's left aligned or your toc title will be off. -->
<b>ZaddCommand: Contents</b><br>&nbsp;&nbsp;<a href="#ZADD _key_ _score_ _member_ (Redis &gt;">ZADD _key_ _score_ _member_ (Redis &gt;</a><br>&nbsp;&nbsp;&nbsp;&nbsp;<a href="#Return value">Return value</a><br>&nbsp;&nbsp;&nbsp;&nbsp;<a href="#See also">See also</a>
<b>ZaddCommand: Contents</b><br>&nbsp;&nbsp;<a href="#ZADD _key_ _score_ _member_ (Redis &gt;">ZADD _key_ _score_ _member_ (Redis &gt;</a><br>&nbsp;&nbsp;&nbsp;&nbsp;<a href="#Return value">Return value</a>
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<h1 class="wikiname">ZaddCommand</h1>
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<h1><a name="ZADD _key_ _score_ _member_ (Redis &gt;">ZADD _key_ _score_ _member_ (Redis &gt;</a></h1> 1.1) =
&iuml;&raquo;&iquest;#sidebar <a href="SortedSetCommandsSidebar.html">SortedSetCommandsSidebar</a><h1><a name="ZADD _key_ _score_ _member_ (Redis &gt;">ZADD _key_ _score_ _member_ (Redis &gt;</a></h1> 1.1) =
<i>Time complexity O(log(N)) with N being the number of elements in the sorted set</i><blockquote>Add the specified <i>member</i> having the specifeid <i>score</i> to the sortedset stored at <i>key</i>. If <i>member</i> is already a member of the sorted setthe score is updated, and the element reinserted in the right position toensure sorting. If <i>key</i> does not exist a new sorted set with the specified_member_ as sole member is crated. If the key exists but does not hold asorted set value an error is returned.</blockquote>
<blockquote>The score value can be the string representation of a double precision floatingpoint number.</blockquote>
<blockquote>For an introduction to sorted sets check the <a href="RedisSortedSets.html">Redis sorted sets</a> page.</blockquote>
<blockquote>For an introduction to sorted sets check the <a href="IntroductionToRedisDataTypes.html">Introduction to Redis data types</a> page.</blockquote>
<h2><a name="Return value">Return value</a></h2><a href="ReplyTypes.html">Integer reply</a>, specifically:<br/><br/><pre class="codeblock python" name="code">
1 if the new element was added
0 if the element was already a member of the sorted set and the score was updated
</pre><h2><a name="See also">See also</a></h2>
<ul><li> <a href="ZremCommand.html">ZREM</a></li><li> <a href="ZrangeCommand.html">ZRANGE</a></li><li> <a href="ZrangeCommand.html">ZREVRANGE</a></li><li> <a href="ZrangebyscoreCommand.html">ZRANGEBYSCORE</a></li><li> <a href="ZcardCommand.html">ZCARD</a></li><li> <a href="ZscoreCommand.html">ZSCORE</a></li></ul>
</pre>
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