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  18 <!-- This is a (PRE) block.  Make sure it's left aligned or your toc title will be off. --> 
  19 <b>RenameCommand: Contents
</b><br>  <a href=
"#RENAME _oldkey_ _newkey_">RENAME _oldkey_ _newkey_
</a><br>    <a href=
"#Return value">Return value
</a><br>    <a href=
"#See also">See also
</a> 
  22                 <h1 class=
"wikiname">RenameCommand
</h1> 
  29                     <h1><a name=
"RENAME _oldkey_ _newkey_">RENAME _oldkey_ _newkey_
</a></h1> 
  30 <i>Time complexity: O(
1)
</i><blockquote>Atomically renames the key 
<i>oldkey
</i> to 
<i>newkey
</i>. If the source anddestination name are the same an error is returned. If 
<i>newkey
</i>already exists it is overwritten.
</blockquote> 
  31 <h2><a name=
"Return value">Return value
</a></h2><a href=
"ReplyTypes.html">Status code repy
</a><h2><a name=
"See also">See also
</a></h2> 
  32 <ul><li> <a href=
"RenamenxCommand.html">RENAMENX
</a> if you don't want overwrite the destionation key if it exists.
</li></ul>