Redis list (List)
Redis list is a simple list of strings sorted insertion order. You can add a list of guide element head (left) or rear (on the right)
A list can contain up 232--1 element (4,294,967,295 over 4 billion each list element).
Examples
redis 127.0.0.1:6379> LPUSH w3bigkey redis (integer) 1 redis 127.0.0.1:6379> LPUSH w3bigkey mongodb (integer) 2 redis 127.0.0.1:6379> LPUSH w3bigkey mysql (integer) 3 redis 127.0.0.1:6379> LRANGE w3bigkey 0 10 1) "mysql" 2) "mongodb" 3) "redis"
In the example above we usedLPUSH three values into a list of named among w3bigkey.
Redis command list
The following table shows a list of related basic commands:
| No. | Command and description |
|---|---|
| 1 | BLPOP key1 [key2] timeout And get out of the first element of the list, if the list is not a list of the elements will be blocked until a timeout or a date can be found in the pop-up element. |
| 2 | BRPOP key1 [key2] timeout And get out of the last element of the list, if the list is not a list of the elements will be blocked until a timeout or a date can be found in the pop-up element. |
| 3 | BRPOPLPUSH source destination timeout Pop a value from the list, the pop element into another list and return it; if there is no element of the list will block until a timeout or until the list can be found in the pop-up element. |
| 4 | LINDEX key index Get a list of the elements by index |
| 5 | LINSERT key BEFORE | AFTER pivot value In the list of elements before or after the insert elements |
| 6 | LLEN key Get a list of length |
| 7 | LPOP key And get out of the first element of the list |
| 8 | LPUSH key value1 [value2] One or more values into the head of the list |
| 9 | LPUSHX key value One or more values into an existing list head |
| 10 | LRANGE key start stop Get a list of the elements in the specified range |
| 11 | LREM key count value Remove list element |
| 12 | LSET key index value Set the value of elements of the list by index |
| 13 | LTRIM key start stop For a list of trim (trim), that is, make a list of only the retention interval specified element, the element is not specified within the range will be deleted. |
| 14 | RPOP key Remove and obtain a list of the last element |
| 15 | RPOPLPUSH source destination Removes the last element of the list, and adds the element to another list and return |
| 16 | RPUSH key value1 [value2] Add one or more values in the list |
| 17 | RPUSHX key value Add value to the existing list |