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Kenneth Reitz
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1.9 KiB
ReStructuredText
47 lines
1.9 KiB
ReStructuredText
`|Redis Documentation| <index.html>`_
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**MsetCommand: Contents**
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`MSET \_key1\_ \_value1\_ \_key2\_ \_value2\_ ... \_keyN\_ \_valueN\_ (Redis > <#MSET%20_key1_%20_value1_%20_key2_%20_value2_%20...%20_keyN_%20_valueN_%20(Redis%20%3E>`_
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`MSETNX \_key1\_ \_value1\_ \_key2\_ \_value2\_ ... \_keyN\_ \_valueN\_ (Redis > <#MSETNX%20_key1_%20_value1_%20_key2_%20_value2_%20...%20_keyN_%20_valueN_%20(Redis%20%3E>`_
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`MSET Return value <#MSET%20Return%20value>`_
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`MSETNX Return value <#MSETNX%20Return%20value>`_
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MsetCommand
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===========
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#sidebar `StringCommandsSidebar <StringCommandsSidebar.html>`_
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MSET \_key1\_ \_value1\_ \_key2\_ \_value2\_ ... \_keyN\_ \_valueN\_ (Redis >
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=============================================================================
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1.1) =
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MSETNX \_key1\_ \_value1\_ \_key2\_ \_value2\_ ... \_keyN\_ \_valueN\_ (Redis >
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===============================================================================
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1.1) = *Time complexity: O(1) to set every key*
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Set the the respective keys to the respective values. MSET will
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replace oldvalues with new values, while MSETNX will not perform
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any operation at alleven if just a single key already exists.
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Because of this semantic MSETNX can be used in order to set
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different keysrepresenting different fields of an unique logic
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object in a way thatensures that either all the fields or none at
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all are set.
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Both MSET and MSETNX are atomic operations. This means that for
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instanceif the keys A and B are modified, another client talking to
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Redis can eithersee the changes to both A and B at once, or no
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modification at all.
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MSET Return value
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-----------------
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`Status code reply <ReplyTypes.html>`_ Basically +OK as MSET can't
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fail
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MSETNX Return value
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-------------------
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`Integer reply <ReplyTypes.html>`_, specifically:
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::
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1 if the all the keys were set
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0 if no key was set (at least one key already existed)
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.. |Redis Documentation| image:: redis.png |