EXPIRE
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What is EXPIRE?
The EXPIRE command is used to set a time-to-live (TTL) for a key in seconds, after which the key will be automatically deleted. If you need to specify the expiration time in milliseconds, you can use the PEXPIRE command. Both commands help manage memory by allowing you to automatically remove keys that are no longer needed, which is especially useful in caching and session management scenarios.
Free resources to learn EXPIRE
- Official docsExpiring Keys
- Official docsEXPIRE
More in stage 2: Strings
- Strings
- Redis vs SQL/NoSQL DBs
- When to choose Redis?
- Caching
- Real-time Analytics
- Session Management
- Pub/Sub Messaging
- Leaderboards and Counters
- Starting the Server
- Connecting using Redis CLI
- Basic Commands / SET, GET
- Using Package Managers
- Pre-compiled Binaries
- Using Docker
- Data Persistence Options
- Rich Data Structures
- High Performance and Scalability
- Setting and Getting Keys
- DEL
- TTL
- Overview of Data Types
- HSET
- HGET
- HGETALL
- HDEL
- HEXISTS
- More Commands
- SET
- GET
- INCR
- DECR
- APPEND
- STRLEN
- More Commands
EXPIRE: common questions
Can I learn EXPIRE in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain EXPIRE in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this EXPIRE tutorial for beginners?
It is lesson 25 of 162 in the free Redis roadmap, in stage 2, Strings. If you are new to Redis, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.