setex

The string command is the most common, simplest command in Redis. 1, set command-set the value of the specified keyThe set command in Redis sets the value of the given key, overwriting the old value if the key already stores another

Five basic Types Key (keys) Common commands: Keys * Check the name of all keys exists keys in the current library to determine if a key exists. A return of 1 indicates that there is, and 0 means not present. move key (that key) db (which library,

Summary of 16 commands commonly used in Redis string type data Description: String type is the simplest type, and a key corresponding to a value,string type is binary safe.         A Redis string can contain any data, such as a JPG picture or a

# JDBC# Study Note of JAVA Tutorial# Victor# 2016.05.27JDBC helps-write Java applications that manage these three programming activities: Connect to a data source, like a database End queries and UPDATE statements to the database

Strings type :? Set the value corresponding to KEY to STRING type value .? The simplest data is binary secure. Can it contain any data .? For example, JPG images or serialized objects .?? Operation: setnamevalue ;?? 2: setnx sets the value

I believe that we have a little knowledge of data expiration in Redis, this article mainly introduces the data expiration policy in Redis, the article introduces in detail through the example code, I believe that everyone's understanding and

1, the Expiration time of key in RedisSet the data expiration time by expire the key seconds command. A return of 1 indicates that the setting was successful, and returning 0 indicates that the key does not exist or the expiration is not

Nodejs uses redis as the cache medium to encapsulate the cache class example, nodejsredis This example describes the encapsulation cache class implemented by nodejs using redis as the cache medium. We will share this with you for your reference. The

Redis supports five types of data: string (String), hash (hash), list, set (set), and Zset (sorted set: Ordered set)I: String (String)The string is the most basic type of redis, and you can understand it as a type that is identical to memcached, a

Key expiration feature Let Redis automatically delete specific keys at a specified time. key expiration feature related commands type Command Set the time to live EXPIRE command and Pexpire command.

Redis supports 5 types of data, namely String,list,hash,set,zset and Hash. 　　 Redis is a high-performance key-value database that introduces key-related commands before introducing its 5 data types. 　　 key-Key You typically manage Redis keys with

[Java] View plain copy package redis.clients.jedis.tests;      import  java.text.parseexception;   import java.util.iterator;   import java.util.List;    import java.util.set;      import org.junit.afterclass;   import org.junit.beforeclass;  

01Redis IntroductionREmote DIctionary Server (Redis) is a Key-value storage system written by Salvatore Sanfilippo.Redis is an open source API that is written in ANSI C, adheres to the BSD protocol, supports networks, can be persisted in memory, key-

I recently did the following two things when I used redis master and slave: 1. I want redis master and slave to analyze from the operation. All write operations are written on the master, and all read operations are read from the master. I recently

Memcached generally sets expire to automatically delete expired files, and then {code ...} redis's PHPAPI only has one setex to set the expiration time. Other lists and zset are not displayed. If not, the cache that is not set will always exist and

Through the introduction in the last two articles, our redis server basically runs. All databases have the most basic CRUD functions. along this context, we begin to learn about the rich data structures of redis. Through the introduction in the last

String type String-type stored value types include string, integer, floating point, and string-type commands that can process strings and integer elements.Native commands 1. Set key value: Set the key value to value; instance: Set string1 'testyyy '.

Recently, when I was using redis Master/Slave, I did the following two things: 1. You want to analyze redis master-slave operations. All write operations are performed on the master node, and all read operations are performed on the master node. 2

Redis command details, Redis command details1. set setnx setexset associates the value of the string value with the key. If the key already exists, it overwrites the original one. If it does not exist, it is created. Setnx sets the key value as

Through the introduction in the last two articles, our redis server basically runs. All databases have the most basic CRUD functions. along this context, we start to learn about the rich data structures of redis. Of course, we should first start