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HDEL & HGETALL — Managing Hashes
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Reading — step 1 of 3

Managing Hashes

~1 min readHashes

HDEL & HGETALL — Managing Hashes

Commands

  • HDEL key field [field ...] — delete fields, return count deleted
  • HGETALL key — return all field-value pairs as flat array
  • HEXISTS key field — :1 or :0
  • HLEN key — number of fields

HGETALL Response Format

Returns a flat RESP array alternating field/value:

HSET user name Alice age 30
HGETALL user → *4\r\n$4\r\nname\r\n$5\r\nAlice\r\n$3\r\nage\r\n$2\r\n30\r\n

Auto-delete

Like lists, when all fields are deleted, the hash key is removed automatically.

Discussion

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