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+ SetexCommand
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+ #sidebar StringCommandsSidebar
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+ SETEX _key_ _time_ _value_
+Time complexity: O(1)The command is exactly equivalent to the following group of commands:
+SET _key_ _value_ +EXPIRE _key_ _time_ ++
The operation is atomic. An atomic SET+EXPIRE operation was already providedusing MULTI/EXEC, but SETEX is a faster alternative providedbecause this operation is very common when Redis is used as a Cache.+