redis SORT command
Translation results：
英[sɔ:t] 美[sɔ:rt]
n.Classification, category; quality, nature; method; a group
vt.& vi.Classification; rectification, arrangement ; suitable for
vt. to select; to classify; to put in order
vi. to classify; to communicate; to coordinate
Third person singular: sorts Plural: sorts Present participle: sorting past tense: sorted past participle: sorted
redis SORT commandsyntax
Function: Return or save the sorted elements in a given list, set, or ordered set key. Sorting defaults to numbers as objects, values are interpreted as double-precision floating point numbers and then compared.
Syntax: SORT key [BY pattern] [LIMIT offset count] [GET pattern [GET pattern ...]] [ASC | DESC] [ALPHA] [STORE destination]
Available versions: >= 1.0.0
Time complexity: O(N M*log(M)), N is to be sorted The number of elements in the list or set, M is the number of elements to be returned. If you just use the GET option of the SORT command to obtain the data without sorting, the time complexity is O(N).
Return: Without using the STORE parameter, the sorted result in list form is returned. Use the STORE parameter to return the number of elements in the sorted result.
redis SORT commandexample
# 开销金额列表 redis> LPUSH today_cost 30 1.5 10 8 (integer) 4 # 排序 redis> SORT today_cost 1) "1.5" 2) "8" 3) "10" 4) "30" # 逆序排序 redis 127.0.0.1:6379> SORT today_cost DESC 1) "30" 2) "10" 3) "8" 4) "1.5"