Shulou(Shulou.com)06/01 Report--

1. Key pattern queries the corresponding key

1) redis allows fuzzy query key to have three wildcards,?, []

: with any number of characters

?: with a single character

[]: a character in parentheses

2) randomkey: returns random key

3) type key: returns the type of key storage

4) exists key: determine whether a key exists

1: exists 0: does not exist

5) del key: delete key

6) rename key newkey: rename

7) renamenx key newkey: modified successfully if newkey does not exist

8) move key 1: move key to database 1

9) ttl key: query the lifecycle of key (seconds)

10) expire key integer value: sets the life cycle of key in seconds

11) pexpire key integer value: sets the life cycle of key in milliseconds

12) pttl key: query the lifecycle of key (milliseconds)

13) perisist key: sets the specified key to be permanent

Second, string type operation

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