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Type: Hash

Set

HSET

  • Syntax: HSET key field value [field value ...]
  • Description: Set one or more pair of field-value.
> HSET m1 name Boii
(integer) 1

> HGET m1 name
"Boii"

HSETNX

  • Syntax: HSETNX key field value
  • Description: Set a pair of field-value if key is not exist.
> HMSET m1 name Boii age 18 bir 2022-01-02
OK

> HGET m1 name
"Boii"

> HSETNX m1 name Eva
(integer) 0

> HSETNX m1 addr SWT
(integer) 1

> HKEYS m1
1) "name"
2) "age"
3) "bir"
4) "addr"

HMSET

  • Syntax: HMSET key field value [field value ...]
  • Description: Set more pair of field-value.
> HMSET m1 name Boii age 18
OK

> HGET m1 name
"Boii"

> HGET m1 age
"18"

Get

HGET

  • Syntax: HGET key field
  • Description: Gets the value of field at Hash named key.
> HMSET m1 name Boii age 18
OK

> HGET m1 name
"Boii"

> HGET m1 age
"18"

HMGET

  • Syntax: HMGET key field [field ...]
  • Description: Gets more values of fields at Hash named key.
> HMSET m1 name Boii age 18
OK

> HMGET m1 name age
"Boii"
"18"

HGETALL

  • Syntax: HGETALL key
  • Description: Gets all pair of field-value at Hash named key.
> HMSET m1 name Boii age 18 bir 2022-01-02
OK

> HGETALL m1
1) "name"
2) "Boii"
3) "age"
4) "18"
5) "bir"
6) "2022-01-01"

HRANDFIELD

  • Syntax: HRANDFIELD key [count [WITHVALUES]]
  • Description: Returns a random key from the Hash named key. Count is 1 by default.
> HMSET m1 name Boii age 18 bir 2022-01-02
OK

> HRANDFIELD m1 5
1) "name"
2) "age"
3) "bir"

> HRANDFIELD m1 5 WITHVALUES
1) "name"
2) "Boii"
3) "age"
4) "18"
5) "bir"
6) "2022-01-01"

HKEYS

  • Syntax: HKEYS key
  • Description: Returns all fields of the Hash named key.
> HMSET m1 name Boii age 18 bir 2022-01-02
OK

> HKEYS m1
1) "name"
2) "age"
3) "bir"

HVALS

  • Syntax: HVALS key
  • Description: Returns all values of the Hash named key.
> HMSET m1 name Boii age 18 bir 2022-01-02
OK

> HVALS m1
1) "Boii"
2) "18"
3) "2022-01-01"

HEXISTS

  • Syntax: HEXISTS key field
  • Description: Returns whether the field exists in Hash named key.
> HMSET m1 name Boii age 18 bir 2022-01-02
OK

> HEXISTS m1 name
(integer) 1

> HEXISTS m1 Boii
(integer) 0

Del

HDEL

  • Syntax: HDEL key field [field ...]
  • Description: Removes one or more pair field-value from the Hash named key.
> HMSET m1 name Boii age 18 bir 2022-01-02
OK

> HDEL m1 name
(integer) 1

> HKEYS m1 
1) "age"
2) "bir"

Length

HLEN

  • Syntax: HLEN key
  • Description: Returns the number of field-value in Hash named key.
> HMSET m1 name Boii age 18 bir 2022-01-02
OK

> HLEN m1
(integer) 3

HSTRLEN

  • Syntax: HSTRLEN key field
  • Description: Returns the length of field's value in Hash named key.
> HMSET m1 name Boii age 18
OK

> HSTRLEN m1 name
(integer) 4

> HSTRLEN m1 age
(integer) 2

Calculation

HINCRBY

  • Syntax: HINCRBY key field increment
  • Description: Increases increment from a numeric value, similar key.field++.
> HMSET m1 name Boii age 18
OK

> HINCRBY m1 age 2
(integer) 20

> HGET m1 age
"20"

HINCRBYFLOAT

  • Syntax: HINCRBYFLOAT key field increment
  • Description: Increases a float value to a numeric value.
> HSET m1 age 10
OK

> HINCRBYFLOAT m1 age 2.2
"12.2"