Redis study notes - use
Article directory
Connect redis
# Local execution
./redis-cli
#
./redis-cli -h host -p port -a password
Basic grammar
Key
| # | command | effect |
|---|---|---|
| 1 | del key | Delete key |
| 2 | dump key | Serialize the key and return the serialized value |
| 3 | exists key | Check if the key exists |
| 4 | expire key seconds | Set timeout, in seconds |
| 5 | expireat key timestamp | Set timeout, receive timestamp |
| 6 | expire key milliseconds | Set timeout, in milliseconds |
| 7 | expireat key milliseconds-timestamp | Set timeout, in milliseconds, receive timestamp |
| 8 | keys pattern | View the key that matches the matching rule |
| 9 | randomkey | Return a key from the database |
| 10 | rename key new_key | Rename |
| 11 | renamex key new_key | Rename, change to new_key only if new_key does not exist |
| 12 | type key | Returns the type of value stored by the key lock |
String
| # | command | effect |
|---|---|---|
| 1 | set key value | Set key value |
| 2 | get key | Get the key |
| 3 | getrange key start end | Get the element in the index range of the value corresponding to the key. The index starts from 0 and is opened on both sides. |
| 4 |
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