Storing Lists in Redis

Insertion Commands

The Redis database internally stores List as a linked list. This linked list has a head and tail. Read More

In computer science, a linked list is a linear collection of data elements whose order is not given by their physical placement in memory. Instead, each element points to the next. It is a data structure consisting of a collection of nodes which together represent a sequence.

Insertion List Command

1. LPUSH This command is ued for inserting data from the head of array.

LPUHS key values...

2. LRANGE This command is used to get the elments from the are between range, if you want to get all elements in the array you can run this LRANGE key 0 -1

LRANGE key start end

3. LPOP This commad is used to remove one element from the head

LPOP key

4. RPUSH This command is used to insert data from the tail

RPUSH key values...

5. RPOP This commad is used to remove elements from the tail

Modification Commands

1. LLEN This command is used to get the length of the list

LLEN key

2. LSET This command is used to update the value at a given index

LSET key index value

3. LINDEX This command is used to find the element at a particular index in the list.

LINDEX key index

4. LPUSHX This command is used to insert elemnt at a head

LPUHSX key value

5. LINSERT This command is used to inset element at specific place

LINSERT key before/after pivot value

The pivot is the value before which we need to insert the number.