DEL
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What is DEL?
The DEL command in Redis is used to delete one or more keys from the database. If the specified key(s) exist, they are removed, and the command returns the number of keys that were deleted. If a key does not exist, it is simply ignored, and no error is returned. This command is useful for managing memory by removing unnecessary or obsolete data and is an atomic operation, ensuring that keys are deleted without interference from other operations.
Free resources to learn DEL
- Official docsDEL
- ArticleRedis DEL Command
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
- expire
- TTL
- Overview of Data Types
- HSET
- HGET
- HGETALL
- HDEL
- HEXISTS
- More Commands
- SET
- GET
- INCR
- DECR
- APPEND
- STRLEN
- More Commands
DEL: common questions
Can I learn DEL 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 DEL 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 DEL tutorial for beginners?
It is lesson 24 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.