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19 | <b>ZaddCommand: Contents</b><br> <a href="#ZADD _key_ _score_ _member_ (Redis >">ZADD _key_ _score_ _member_ (Redis ></a><br> <a href="#Return value">Return value</a> |
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22 | <h1 class="wikiname">ZaddCommand</h1> |
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29 | #sidebar <a href="SortedSetCommandsSidebar.html">SortedSetCommandsSidebar</a><h1><a name="ZADD _key_ _score_ _member_ (Redis >">ZADD _key_ _score_ _member_ (Redis ></a></h1> 1.1) = |
30 | <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> |
31 | <blockquote>The score value can be the string representation of a double precision floatingpoint number.</blockquote> |
32 | <blockquote>For an introduction to sorted sets check the <a href="IntroductionToRedisDataTypes.html">Introduction to Redis data types</a> page.</blockquote> |
33 | <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"> |
34 | 1 if the new element was added |
35 | 0 if the element was already a member of the sorted set and the score was updated |
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