Code Destine
Guide to learn programming
Redis HEXISTS – How to check existence of field in hash value in redis
5 years ago Lalit Bhagtani 0
In this tutorial, we will learn about how to check, if a field exists in the hash value stored at a key or not. For this we will use a COMMAND – HEXISTS in redis-cli. 1 is returned, if the hash value stored at a key contains the specified field and 0 is returned, if Read More
Redis HDEL – How to delete a field from the hash value in redis datastore
5 years ago Lalit Bhagtani 0
In this tutorial, we will learn about how to delete one or more fields from the hash value stored at a key. For this we will use a COMMAND – HDEL in redis-cli. This command, removes one or more specified fields from the hash value stored at the key. Specified fields that are not present in Read More
Redis HLEN – How to get the number of fields contained in hash value
5 years ago Lalit Bhagtani 0
In this tutorial, we will learn about how to get the number of fields contained in the hash value stored at a key, by using a COMMAND – HLEN in redis-cli. The syntax of redis HLEN command is as follows :- Syntax :- redis host:post> HLEN <key name> Output :- - (integer) value, representing the number Read More
Redis ZINCRBY – How to increment the score of element in sorted set value in redis
5 years ago Lalit Bhagtani 0
In this tutorial, we will learn about how to increment the score of an element of the sorted set value stored at a key in redis datastore. For this we will use a COMMAND – ZINCRBY in redis-cli. This command is used to increment the score of an element in the sorted set value stored at the key Read More
Redis ZINTERSTORE – How to perform intersection of sorted set values
5 years ago Lalit Bhagtani 0
In this tutorial, we will learn about how to perform the intersection operation on two or more sorted sets value stored in redis datastore, by using redis ZINTERSTORE command. Intersection of Sets: In set theory, the intersection of two or more sets is the set which contains the elements that are common to all the Read More
Redis ZUNIONSTORE – How to perform union of sorted set values in redis
5 years ago Lalit Bhagtani 0
In this tutorial, we will learn about how to perform the union operation on two or more sorted sets value stored in redis datastore, by using redis ZUNIONSTORE command. Union of Sets: In set theory, the union of two or more sets is the set which contains all the elements ( distinct ) present in Read More
Redis ZSCORE – How to get score of an element from a sorted set value in redis
5 years ago Lalit Bhagtani 0
In this tutorial, we will learn about how to get the score of an element of the sorted set value stored at a key. For this we will use a Redis ZSCORE command. The ZSCORE command is used to return the score of a specified element of the sorted set value stored at the specified key. Read More
Redis ZREM – How to delete an element from a sorted set value in redis
5 years ago Lalit Bhagtani 0
In this tutorial, we will learn about how to delete one or more specified elements from a sorted set value stored at a key. For this we will use a COMMAND – ZREM in redis-cli. This command, deletes one or more specified elements from the sorted set stored at the specified key. Specified members that are Read More