Redis - String Msetnx Command


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Redis MSETNX command is used to set multiple values to multiple keys, only if none of them already exist. If any one from the current operation exists in Redis, then MSETNX does not perform any operation.

Return Value

Integer reply 1 or 0

  • 1, if all the keys are set in Redis.
  • 0, if no keys are set in Redis.

Syntax

Following is the basic syntax of Redis MSETNX command.

redis 127.0.0.1:6379> MSETNX key1 value1 key2 value2 .. keyN valueN 

Example

redis 127.0.0.1:6379> MSETNX key1 "Hello" key2 "world" 
(integer) 1 
redis 127.0.0.1:6379> MSETNX key2 "worlds" key3 "third key" 
(integer) 0 
redis 127.0.0.1:6379> MGET key1 key2 key3 
1) "Hello" 
2) "world" 
3) (nil)

redis_strings.htm

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