MSETNX

Note

Official reference: MSETNX.

Write all pairs only when none of the target keys exists.

Syntax

MSETNX key value [key value ...]

Results

Return	Rows	Content
Update count	--	Returns 0 if no keys were set (at least one key already exists); returns the number of keys if all keys were set.

Example

MSETNX demo:new-name mali demo:new-city Shanghai