Redis (2.8.3) command Learning-HASHS

hdel key field [field ...]

Delete one or more hash fields

127.0.0.1:6379> hset book.1 title HelloWorld (integer) 0127.0.0.1:6379> hexists book.1 title (integer) 1127.0.0.1:6379> hdel book.1 title (integer) 1127.0.0.1:6379> hexists book.1 title (integer) 0

Hexists key Field

Determine if a hash field exists

127.0.0.1:6379> hset book.1 title HelloWorld (integer) 1127.0.0.1:6379> hexists book.1 title (integer) 1127.0.0.1:6379> hexists book.1 title2 (integer) 0127.0.0.1:6379> hexists book.2 title (integer) 0

Hget key Field

Get the value of a hash field

127.0.0.1:6379> hset book.1 title HelloWorld (integer) 0127.0.0.1:6379> hset book.1 author mr.404 (integer) 1127.0.0.1:6379> hget book.1 title "HelloWorld" 127.0.0.1:6379> hget book.1 Author "mr.404"

Hgetall Key

Get all the fields and values in a hash

127.0.0.1:6379>  hset book.1 title HelloWorld (integer) 1127.0.0.1:6379> hset book.1 author mr.404 (integer) 1127.0.0.1:6379> hgetall book.11) "title" 2) "HelloWorld" 3) "author" 4) "mr.404"

Hincrby key field Increment

Increment the integer value of a hash field by the given number

127.0.0.1:6379> hset book.1 Price (integer) 1127.0.0.1:6379> hincrby book.1 Price (integer) 40127.0.0.1:6379& Gt Hincrby Book.1 price-5
(integer) 35

Hincrbyfloat key field Increment

Increment the float value of a hash field by the given amount

127.0.0.1:6379> hset book.1 Price (integer) 0127.0.0.1:6379> hincrbyfloat book.1 price 9.99 "39.99" 127.0.0.1:6379> hincrbyfloat book.1 price-4.5 "35.49"

Hkeys Key

Get all the fields in a hash

127.0.0.1:6379> hset book.1 title HelloWorld (integer) 0127.0.0.1:6379> hset book.1 author mr.404 (integer) 0127.0.0.1:6379> hkeys book.11) "title" 2) "Author"

Hlen Key

Get the number of fields in a hash

127.0.0.1:6379> hset book.1 title HelloWorld (integer) 0127.0.0.1:6379> hset book.1 author mr.404 (integer) 0127.0.0.1:6379> hlen book.1 (integer) 2

Hmget key field [field ...]

Get the values of all the given hash fields

127.0.0.1:6379> hset book.1 title HelloWorld (integer) 0127.0.0.1:6379> hset book.1 author mr.404 (integer) 0127.0.0.1:6379> hmget book.1 author Title1) "mr.404" 2) "HelloWorld

Hmset key field value [field value ...]

Set multiple hash fields to multiple values

127.0.0.1:6379> Hmset book.1 title HelloWorld author mr.404ok127.0.0.1:6379> hget book.1 title "HelloWorld" 127.0.0.1:6379> hget book.1 Author "mr.404"

Hset key field value

Set the string value of a hash field

127.0.0.1:6379> hset book.1 title HelloWorld (integer) 0127.0.0.1:6379> hset book.1 author mr.404 (integer) 1127.0.0.1:6379> hget book.1 title "HelloWorld" 127.0.0.1:6379> hget book.1 Author "mr.404"

Hsetnx key field value

Set the value of a hash field, only if the field does not exist

127.0.0.1:6379> hsetnx book.1 title HelloWorld (integer) 1127.0.0.1:6379> hsetnx book.1 title Hellopython (integer) 0127.0.0.1:6379> hget book.1 title "HelloWorld"

Hstrlen key Field

Get the length of the value of a hash field

More:http://redis.io/commands/hstrlen

Hvals Key
Get all the values in a hash

127.0.0.1:6379> hsetnx book.1 title HelloWorld (integer) 0127.0.0.1:6379> hset book.1 author mr.404 (integer) 1127.0.0.1:6379> hvals book.11) "HelloWorld" 2) "mr.404"

HSCAN key cursor [MATCH pattern] [count Count]

Incrementally iterate hash fields and associated values

More:http://redis.io/commands/hscan, http://www.redis.cn/commands/hscan.html

Redis (2.8.3) command Learning-HASHS