Redis Common directives

Redis Instructions

1. General Instructions

1.1 Cases of matching key:keys pattern

1.2 Determine if key exists:

Exists key

1.3 Delete key:

Del Key1 [Key2,key3 ...]

1.4 View Build Type:

Type key

127.0.0.1:6379>type Test

String

2 string Instruction

2.1 Write String

Set key value

Eg:set name Zhang San

2.2 Read the built-in values:

Get key

2.3 Self-increment (value +1):

INCR key

2.4 Specify the number of self-increment:

Incrby Key Increment

Number of command builds added

2.5 Self-subtraction:

DECR key

2.6 Specify the number of auto-subtract:

Decrby Key Decrement

2.7 Increase the specified floating point number:

Incrbyfloat Key Floatvalue

2.8 Tail Best Value:

Append key value

2.9 Get string Length:

Strlen Key

2.10 Get multiple simply:

Mget key1 Key2 ...

2.11 Get bit:

Getbit Key Offset

2.12 Setting the bit:

Setbit Key Offset value

3 Hash type

3.1 Assignment:

Hset key field value

3.2 Value:

Hget key Field

3.3 Multi-field assignment:

Hmset key field1 values Field2 values ...

3.4 Get the multi-field value in key:

Hmget key Field1 Filed2 ...

3.5 Get all values in key

Hgetall Key

3.6 Determine if a field exists:

Hexists key Field

3.7 Assign a value when the field does not exist:

Hsetnx key field value

3.8 Fields Add Numbers:

Hincrby key field Increment

3.9 Delete a field:

Hdel key Field

3.10 Get all field names:

Hkeys Key

3.11 Get all field values:

Hvals Key

3.12 View number of fields:

Hlen Key

4 List types:

4.1 Append list value to left:

Lpush key Val1 Val2 [Val ....]

4.2 Append list value to the right:

Rpush key Val1 Val2 [Val ....]

4.3 A value pops up on the left:

Lpop Key

4.4 A value pops up on the right:

Rpop Key

4.5 List Length:

Llen Key

4.6 Get list range values:

Lrange Key Start stop

4.7 Gets the specified subscript value:

Lindex Key Index

4.8 setting Specifies the subscript value:

LSet Key index value

4.9 Keep the specified subscript content:

LTrim Key Start stop

Retains the value from start to stop in key, startstop are integers.

4.10 Insert a value before/after the specified element position:

Linsert Key Before|after Pivot value

Find the pivot value in the key set and put value before or after the pivot value;

4.11 Transfer an element from a list to a list of columns:

Lpoplpush Source Destination

5 collection type

5.1 Adding a Collection element:

Sadd key Member1 member2 [...]

5.2 Removing a collection element:

Srem key Member1 member2 [...]

5.3 Viewing collection elements:

Smembers Key

5.4 Determine whether an element exists in the collection:

Sismember Key Member

5.5 Take set difference set:

Sdiff key1 Key2 [...]

5.6 Take set Intersection:

Sinter key1 Key2 [...]

5.7 Taking the set of the collection:

Sunion key1 Key2 [...]

5.8 Gets the number of elements in the collection:

SCard Key

5.9 Set operation and storage:

Sdiffstore destination Key1 key2 [...]

Sdiffstore destination Key1 key2 [...]

Sdiffstore destination Key1 key2 [...]

5.10 Randomly gets the elements of the collection:

Srandmember key [Count]

5.11 POPs an element from the collection:

Spop Key

6 Ordered collection types

6.1 New Collections

Zadd key score member [score member ...]

Adds a fraction of an element and an element to an ordered set.

6.2 Get the score for an ordered collection:

Zscorekey Member

6.3 Gets the range of fractions in an ordered collection:

Zrange key start stop [Withscores]

Returns the set element in key in the order of the score from small to large;

Zrevrange key start stop [Withscores]

Returns the set element in key in the order of the fractions from large to small;

6.4 Gets the element that specifies the range of fractions:

Zrangebyscore key Minscorevalue Maxscorevalue [withscores] [limit Offsetcount]

6.5 Increase the score of an element:

Zincrby Key Increment member

Adds a score of increment to an element. If you add a score of 10 to an element in element scoreboard, then: Tom Zincrbyscoreboard

To lose a score, change it to a negative number.

6.6 Get the number of elements:

Zcard Key

6.7 Gets the number of elements in the atmosphere of the specified fraction:

Zcount Key min Max

6.8 Delete Elements by rank range:

Zremrangebyrank Key min Max

Min and Max refer to subscript, starting from 0.

6.9 Delete an element according to the specified fractional range:

Zremrangebyscore Key min Max

Min and Max refer to fractions.

6.10 Getting the element rank:

Zrange Key Member

Zrevrange Key Member

6.11 computes the intersection of an ordered set: