/doc/SetnxCommand.html
HTML | 42 lines | 32 code | 9 blank | 1 comment | 0 complexity | 49c69c99fd46eec368d88b9ee391082b MD5 | raw file
1 2<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> 3<html> 4 <head> 5 <link type="text/css" rel="stylesheet" href="style.css" /> 6 </head> 7 <body> 8 <div id="page"> 9 10 <div id='header'> 11 <a href="index.html"> 12 <img style="border:none" alt="Redis Documentation" src="redis.png"> 13 </a> 14 </div> 15 16 <div id="pagecontent"> 17 <div class="index"> 18<!-- This is a (PRE) block. Make sure it's left aligned or your toc title will be off. --> 19<b>SetnxCommand: Contents</b><br> <a href="#SETNX _key_ _value_">SETNX _key_ _value_</a><br> <a href="#Return value">Return value</a><br> <a href="#See also">See also</a> 20 </div> 21 22 <h1 class="wikiname">SetnxCommand</h1> 23 24 <div class="summary"> 25 26 </div> 27 28 <div class="narrow"> 29 <h1><a name="SETNX _key_ _value_">SETNX _key_ _value_</a></h1> 30<i>Time complexity: O(1)</i><blockquote>SETNX works exactly like <a href="SetCommand.html">SET</a> with the only difference thatif the key already exists no operation is performed.SETNX actually means "SET if Not eXists".</blockquote> 31<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"> 321 if the key was set 330 if the key was not set 34</pre><h2><a name="See also">See also</a></h2> 35<ul><li> <a href="SetCommand.html">SET</a></li></ul> 36 </div> 37 38 </div> 39 </div> 40 </body> 41</html> 42