Redis Sets Commands

Redis set is a list of unique values used to store sets data structure in Redis under a key. I this lesson I will show the commands of the Redis sets.

SADD command is used to create a new set or add an item at the set:

Syntax:

SADD key value1 value2 ...

Example:

SADD numbers 1 3 4 3

 

Some Other Commands of Sets:

Commands Description	Syntax	Example
Adding elements to set	SADD key value1 value2 ...	ADD rolls 9 2 3 4 6 5 6 7
Getting all elements of a set	SMEMBERS key	SMEMBERS numbers
Getting the number of members of a set	SCARD key	SCARD numbers
Getting difference among multiple sets	SDIFF key1 key2 ...	SDIFF rolls numbers
Store the difference among multiple sets to a new set	SDIFFSTORE destination key1 key2 ..	SDIFFSTORE diif rolls numbers
Getting intersect	SINTER key1 key2 ...	SINTER rolls numbers
Store intersects into another set	SINTERSTORE destination key1 key2 ...	SINTERSTORE commons rolls numbers
Checking is a value is a member of a set or not	SISMEMBER key member	SISMEMBER numbers 3
Transfer a member value from one set to another	SMOVE source destination member	SMOVE rolls numbers 9
Remove and get a random number from a set	SPOP key	SPOP numbers
Getting one or many members from a set	SRANDMEMBER key	SRANDMEMBER numbers
Remove one or multiple members from a set	SREM key member1 [member2]	SREM rolls 2 3
Get the union of multiple sets	SUNION key1 key2 ....	SUNION rolls numbers
Store union of multiple sets to a set	SUNIONSTORE destination key1 [key2]	SUNIONSTORE all rolls numbers
Iterate sets	SSCAN key cursor [MATCH pattern] [COUNT count]	SSCAN numbers 0 match *