SMOVE source destination member
相关命令
- SADD
- SCARD
- SDIFF
- SDIFFSTORE
- SINTER
- SINTERSTORE
- SISMEMBER
- SMEMBERS
- SMOVE
- SPOP
- SRANDMEMBER
- SREM
- SSCAN
- SUNION
- SUNIONSTORE
始于1.0.0可用。
时间复杂度: O(1)
Move member
from the set at source
to the set at destination
. This operation is atomic. In every given moment the element will appear to be a member of source
or destination
for other clients.
If the source set does not exist or does not contain the specified element, no operation is performed and 0
is returned. Otherwise, the element is removed from the source set and added to the destination set. When the specified element already exists in the destination set, it is only removed from the source set.
An error is returned if source
or destination
does not hold a set value.
返回值
Integer reply, specifically:
1
if the element is moved.0
if the element is not a member ofsource
and no operation was performed.
例子
redis> SADD myset "one"
- (integer) 1
redis> SADD myset "two"
- (integer) 1
redis> SADD myotherset "three"
- (integer) 1
redis> SMOVE myset myotherset "two"
- (integer) 1
redis> SMEMBERS myset
- 1) "one"
redis> SMEMBERS myotherset
- 1) "two"
- 2) "three"
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