Memcached set Command

The Memcached set command is used to store a value in the specified key.

If the key already exists, this command can update the original data associated with that key, thus serving an update function.

Syntax:

The basic syntax format for the set command is as follows:

set key flags exptime bytes [noreply] 
value

Parameter descriptions are as follows:

• key: The key in the key-value structure used to look up the cached value.

• flags: An integer parameter that the client can use to store additional information about the key-value pair.

• exptime: The duration for which the key-value pair is stored in the cache (in seconds, 0 means forever).

• bytes: The number of bytes stored in the cache.

• noreply (optional): This parameter informs the server that no response is needed.

• value: The value to be stored (always on the second line), directly understood as the value in the key-value structure.

Example

In the following example, we set:

• key → tutorialpro

• flag → 0

• exptime → 900 (in seconds)

• bytes → 9 (number of bytes of data stored)

• value → memcached

  set tutorialpro 0 900 9
  memcached
  STORED
  
  get tutorialpro
  VALUE tutorialpro 0 9
  memcached
  
  END
  

Output

If the data is set successfully, the output will be:

STORED

Output information explanation:

• STORED: Output after successful save.

• ERROR: Output after a failed save.