Hash is a map of field-value pair, which can be used to represent object type like java object. In Redis, hash can be store as a value at key and various redis commands are used to store, manage and retrieved a hash value stored in redis database. The syntax for using redis commands is as follows :-
Syntax :-
redis host:post> <Command Name> <key name>
Example :-
Redis Hash Value Commands :-
Some of the important commands to manage hash value in redis database are as follows :-
| S.No | Command | Description |
|---|---|---|
| 1 | HDEL | Delete fields from hash value |
| 2 | HEXISTS | Check existence of field in hash value |
| 3 | HGET | Get value of field in hash value |
| 4 | HGETALL | Returns all fields and its values contained in hash value |
| 5 | HINCRBY | Increments integer value of field in hash value |
| 6 | HINCRBYFLOAT | Increments float value of field in hash value |
| 7 | HKEYS | Returns all field’s name contained in hash value |
| 8 | HLEN | Returns number of fields in hash value |
| 9 | HMGET | Get multiple fields and its respective values contained in hash value |
| 10 | HMSET | Set multiple values to its respective fields in hash value |
| 11 | HSCAN | Incrementally iterates hash fields and associated values |
| 12 | HSET | Set value to its field contained in hash value |
| 13 | HSETNX | Set value to its field only if field exists |
| 14 | HSTRLEN | Returns length of field’s value contained in hash value |
| 15 | HVALS | Returns all values associated with fields contained in hash value |
References :-
- Hash Command Docs
That’s all for Redis hash value and commands used to store and manage it in redis datastore. If you liked it, please share your thoughts in comments section and share it with others too.