mirror of
http://github.com/valkey-io/valkey
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48 lines
36 KiB
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
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<img style="border:none" alt="Redis Documentation" src="redis.png">
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<!-- This is a (PRE) block. Make sure it's left aligned or your toc title will be off. -->
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<b>CommandReference: Contents</b><br> <a href="#Categorized Command List">Categorized Command List</a><br> <a href="#Connection handling">Connection handling</a><br> <a href="#Commands operating on all value types">Commands operating on all value types</a><br> <a href="#Commands operating on string values">Commands operating on string values</a><br> <a href="#Commands operating on lists">Commands operating on lists</a><br> <a href="#Commands operating on sets">Commands operating on sets</a><br> <a href="#Commands operating on sorted zsets (sorted sets)">Commands operating on sorted zsets (sorted sets)</a><br> <a href="#Commands operating on hashes">Commands operating on hashes</a><br> <a href="#Sorting">Sorting</a><br> <a href="#Transactions">Transactions</a><br> <a href="#Publish/Subscribe">Publish/Subscribe</a><br> <a href="#Persistence control commands">Persistence control commands</a><br> <a href="#Remote server control commands">Remote server control commands</a>
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<h1 class="wikiname">CommandReference</h1>
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<div class="summary">
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= Redis Command Reference =<br/><br/>Every command name links to a specific wiki page describing the behavior of the command.<h2><a name="Categorized Command List">Categorized Command List</a></h2><h2><a name="Connection handling">Connection handling</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="QuitCommand.html">QUIT</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> close the connection </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="AuthCommand.html">AUTH</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>password</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> simple password authentication if enabled </td></tr></table>
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<h2><a name="Commands operating on all value types">Commands operating on all value types</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ExistsCommand.html">EXISTS</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> test if a key exists </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="DelCommand.html">DEL</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> delete a key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="TypeCommand.html">TYPE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> return the type of the value stored at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="KeysCommand.html">KEYS</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>pattern</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> return all the keys matching a given pattern </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="RandomkeyCommand.html">RANDOMKEY</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> return a random key from the key space </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="RenameCommand.html">RENAME</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>oldname</i> <i>newname</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> rename the old key in the new one, destroying the newname key if it already exists </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="RenamenxCommand.html">RENAMENX</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>oldname</i> <i>newname</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> rename the <i>oldname</i> key to <i>newname</i>, if the <i>newname</i> key does not already exist </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="DbsizeCommand.html">DBSIZE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> return the number of keys in the current db </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ExpireCommand.html">EXPIRE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> set a time to live in seconds on a key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ExpireCommand.html">PERSIST</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> remove the expire from a key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="TtlCommand.html">TTL</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> get the time to live in seconds of a key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SelectCommand.html">SELECT</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>index</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Select the DB with the specified index </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="MoveCommand.html">MOVE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>dbindex</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Move the key from the currently selected DB to the <i>dbindex</i> DB </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="FlushdbCommand.html">FLUSHDB</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Remove all the keys from the currently selected DB </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="FlushallCommand.html">FLUSHALL</a></td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Remove all the keys from all the databases </td></tr></table>
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<h2><a name="Commands operating on string values">Commands operating on string values</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SetCommand.html">SET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set a <i>key</i> to a string <i>value</i> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="GetCommand.html">GET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the string value of the <i>key</i> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="GetsetCommand.html">GETSET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set a key to a string returning the old value of the key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SetnxCommand.html">SETNX</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set a key to a string value if the key does not exist </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SetexCommand.html">SETEX</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>time</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set+Expire combo command </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SetbitCommand.html">SETBIT</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>offset</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set bit at <i>offset</i> to <i>value</i> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="GetbitCommand.html">GETBIT</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>offset</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return bit value at <i>offset</i> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="MsetCommand.html">MSET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key1</i> <i>value1</i> <i>key2</i> <i>value2</i> ... <i>keyN</i> <i>valueN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set multiple keys to multiple values in a single atomic operation </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="MsetCommand.html">MSETNX</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key1</i> <i>value1</i> <i>key2</i> <i>value2</i> ... <i>keyN</i> <i>valueN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set multiple keys to multiple values in a single atomic operation if none of the keys already exist </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="MgetCommand.html">MGET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key1</i> <i>key2</i> ... <i>keyN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Multi-get, return the strings values of the keys </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="IncrCommand.html">INCR</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Increment the integer value of key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="IncrCommand.html">INCRBY</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>integer</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Increment the integer value of <i>key</i> by <i>integer</i> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="IncrCommand.html">DECR</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Decrement the integer value of key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="IncrCommand.html">DECRBY</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>integer</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Decrement the integer value of <i>key</i> by <i>integer</i> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="AppendCommand.html">APPEND</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Append the specified string to the string stored at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SubstrCommand.html">SUBSTR</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>start</i> <i>end</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return a substring of a larger string </td></tr></table>
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<h2><a name="Commands operating on lists">Commands operating on lists</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="RpushCommand.html">RPUSH</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Append an element to the tail of the List value at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="RpushCommand.html">LPUSH</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Append an element to the head of the List value at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LlenCommand.html">LLEN</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the length of the List value at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LrangeCommand.html">LRANGE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>start</i> <i>end</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return a range of elements from the List at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LtrimCommand.html">LTRIM</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>start</i> <i>end</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Trim the list at key to the specified range of elements </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LindexCommand.html">LINDEX</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>index</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the element at index position from the List at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LsetCommand.html">LSET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>index</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set a new value as the element at index position of the List at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LremCommand.html">LREM</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>count</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Remove the first-N, last-N, or all the elements matching value from the List at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LpopCommand.html">LPOP</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return and remove (atomically) the first element of the List at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LpopCommand.html">RPOP</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return and remove (atomically) the last element of the List at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="BlpopCommand.html">BLPOP</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key1</i> <i>key2</i> ... <i>keyN</i> <i>timeout</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Blocking LPOP </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="BlpopCommand.html">BRPOP</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key1</i> <i>key2</i> ... <i>keyN</i> <i>timeout</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Blocking RPOP </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="RpoplpushCommand.html">RPOPLPUSH</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>srckey</i> <i>dstkey</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return and remove (atomically) the last element of the source List stored at <i>srckey</i> and push the same element to the destination List stored at <i>dstkey</i> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="BrpoplpushCommand.html">BRPOPLPUSH</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>srckey</i> <i>dstkey</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Like RPOPLPUSH but blocking of source key is empty </td></tr></table>
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<h2><a name="Commands operating on sets">Commands operating on sets</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SaddCommand.html">SADD</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>member</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Add the specified member to the Set value at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SremCommand.html">SREM</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>member</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Remove the specified member from the Set value at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SpopCommand.html">SPOP</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Remove and return (pop) a random element from the Set value at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SmoveCommand.html">SMOVE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>srckey</i> <i>dstkey</i> <i>member</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Move the specified member from one Set to another atomically </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ScardCommand.html">SCARD</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the number of elements (the cardinality) of the Set at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SismemberCommand.html">SISMEMBER</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>member</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Test if the specified value is a member of the Set at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SinterCommand.html">SINTER</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key1</i> <i>key2</i> ... <i>keyN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the intersection between the Sets stored at key1, key2, ..., keyN </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SinterstoreCommand.html">SINTERSTORE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>dstkey</i> <i>key1</i> <i>key2</i> ... <i>keyN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Compute the intersection between the Sets stored at key1, key2, ..., keyN, and store the resulting Set at dstkey </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SunionCommand.html">SUNION</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key1</i> <i>key2</i> ... <i>keyN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the union between the Sets stored at key1, key2, ..., keyN </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SunionstoreCommand.html">SUNIONSTORE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>dstkey</i> <i>key1</i> <i>key2</i> ... <i>keyN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Compute the union between the Sets stored at key1, key2, ..., keyN, and store the resulting Set at dstkey </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SdiffCommand.html">SDIFF</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key1</i> <i>key2</i> ... <i>keyN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the difference between the Set stored at key1 and all the Sets key2, ..., keyN </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SdiffstoreCommand.html">SDIFFSTORE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>dstkey</i> <i>key1</i> <i>key2</i> ... <i>keyN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Compute the difference between the Set key1 and all the Sets key2, ..., keyN, and store the resulting Set at dstkey </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SmembersCommand.html">SMEMBERS</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return all the members of the Set value at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SrandmemberCommand.html">SRANDMEMBER</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return a random member of the Set value at key </td></tr></table>
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<h2><a name="Commands operating on sorted zsets (sorted sets)">Commands operating on sorted zsets (sorted sets)</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZaddCommand.html">ZADD</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>score</i> <i>member</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Add the specified member to the Sorted Set value at key or update the score if it already exist </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZremCommand.html">ZREM</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>member</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Remove the specified member from the Sorted Set value at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZincrbyCommand.html">ZINCRBY</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>increment</i> <i>member</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> If the member already exists increment its score by <i>increment</i>, otherwise add the member setting <i>increment</i> as score </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZrankCommand.html">ZRANK</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>member</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the rank (or index) or <i>member</i> in the sorted set at <i>key</i>, with scores being ordered from low to high </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZrankCommand.html">ZREVRANK</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>member</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the rank (or index) or <i>member</i> in the sorted set at <i>key</i>, with scores being ordered from high to low </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZrangeCommand.html">ZRANGE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>start</i> <i>end</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return a range of elements from the sorted set at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZrangeCommand.html">ZREVRANGE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>start</i> <i>end</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return a range of elements from the sorted set at key, exactly like ZRANGE, but the sorted set is ordered in traversed in reverse order, from the greatest to the smallest score </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZrangebyscoreCommand.html">ZRANGEBYSCORE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>min</i> <i>max</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return all the elements with score >= min and score <= max (a range query) from the sorted set </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZrangebyscoreCommand.html">ZCOUNT</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>min</i> <i>max</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the number of elements with score >= min and score <= max in the sorted set </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZcardCommand.html">ZCARD</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the cardinality (number of elements) of the sorted set at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZscoreCommand.html">ZSCORE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>element</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the score associated with the specified element of the sorted set at key </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZremrangebyrankCommand.html">ZREMRANGEBYRANK</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>min</i> <i>max</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Remove all the elements with rank >= min and rank <= max from the sorted set </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZremrangebyscoreCommand.html">ZREMRANGEBYSCORE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>min</i> <i>max</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Remove all the elements with score >= min and score <= max from the sorted set </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ZunionstoreCommand.html">ZUNIONSTORE / ZINTERSTORE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>dstkey</i> <i>N</i> <i>key1</i> ... <i>keyN</i> WEIGHTS <i>w1</i> ... <i>wN</i> AGGREGATE SUM|MIN|MAX </td><td style="border: 1px solid #aaa; padding: 5px;"> Perform a union or intersection over a number of sorted sets with optional weight and aggregate </td></tr></table>
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<h2><a name="Commands operating on hashes">Commands operating on hashes</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HsetCommand.html">HSET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>field</i> <i>value</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set the hash field to the specified value. Creates the hash if needed. </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HgetCommand.html">HGET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>field</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Retrieve the value of the specified hash field. </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HmgetCommand.html">HMGET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>field1</i> ... <i>fieldN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Get the hash values associated to the specified fields. </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HmsetCommand.html">HMSET</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>field1</i> <i>value1</i> ... <i>fieldN</i> <i>valueN</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Set the hash fields to their respective values. </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HincrbyCommand.html">HINCRBY</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>field</i> <i>integer</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Increment the integer value of the hash at <i>key</i> on <i>field</i> with <i>integer</i>. </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HexistsCommand.html">HEXISTS</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>field</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Test for existence of a specified field in a hash </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HdelCommand.html">HDEL</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>field</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Remove the specified field from a hash </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HlenCommand.html">HLEN</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the number of items in a hash. </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HgetallCommand.html">HKEYS</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return all the fields in a hash. </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HgetallCommand.html">HVALS</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return all the values in a hash. </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="HgetallCommand.html">HGETALL</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> </td><td style="border: 1px solid #aaa; padding: 5px;"> Return all the fields and associated values in a hash. </td></tr></table>
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<h2><a name="Sorting">Sorting</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SortCommand.html">SORT</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> BY <i>pattern</i> LIMIT <i>start</i> <i>end</i> GET <i>pattern</i> ASC|DESC ALPHA </td><td style="border: 1px solid #aaa; padding: 5px;"> Sort a Set or a List accordingly to the specified parameters </td></tr></table>
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<h2><a name="Transactions">Transactions</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="MultiExecCommand.html">MULTI/EXEC/DISCARD/WATCH/UNWATCH</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Redis atomic transactions </td></tr></table>
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<h2><a name="Publish/Subscribe">Publish/Subscribe</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="PublishSubscribe.html">SUBSCRIBE/UNSUBSCRIBE/PUBLISH</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Redis Public/Subscribe messaging paradigm implementation </td></tr></table>
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<h2><a name="Persistence control commands">Persistence control commands</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SaveCommand.html">SAVE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Synchronously save the DB on disk </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="BgsaveCommand.html">BGSAVE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Asynchronously save the DB on disk </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LastsaveCommand.html">LASTSAVE</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Return the UNIX time stamp of the last successfully saving of the dataset on disk </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ShutdownCommand.html">SHUTDOWN</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Synchronously save the DB on disk, then shutdown the server </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="BgrewriteaofCommand.html">BGREWRITEAOF</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Rewrite the append only file in background when it gets too big </td></tr></table>
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<h2><a name="Remote server control commands">Remote server control commands</a></h2><table><tr><td style="border: 1px solid #aaa; padding: 5px;"> <b>Command</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Parameters</b> </td><td style="border: 1px solid #aaa; padding: 5px;"> <b>Description</b> </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="InfoCommand.html">INFO</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Provide information and statistics about the server </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="MonitorCommand.html">MONITOR</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Dump all the received requests in real time </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="SlaveofCommand.html">SLAVEOF</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Change the replication settings </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="ConfigCommand.html">CONFIG</a> </td><td style="border: 1px solid #aaa; padding: 5px;"> - </td><td style="border: 1px solid #aaa; padding: 5px;"> Configure a Redis server at runtime </td></tr></table>
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