Memcached add command is used to use the value (data value) is stored in the specified key .
If The The parameters are described as follows: In the following example, we set: Key → new_key Flag → 0 Exptime → 900 (in seconds) Bytes → 10 (bytes of data storage) Value → data_value If the data is added successfully, the output: Output information description: add of key already exists, the data will not be updated (expired key Will be updated), the previous value will remain the same, and you will get a response NOT_STORED . 1.6.1. Syntax: ¶
add basic syntax format of the command is as follows:add key flags exptime bytes [noreply]
value
key :Key value key-value in the structure key used to find cached values flags :Can include integer parameters for key-value pairs, which clients use to store additional information about key-value pairs exptime :Length of time to save key-value pairs in the cache (in seconds,0 means forever) bytes :Number of bytes stored in the cache noreply (optional): this parameter tells the server that there is no need to return data value :The stored value (always in the second line) (which can be directly understood as key-value in the structure value ) 1.6.2. Example ¶
add new_key 0 900 10
data_value
STORED
get new_key
VALUE new_key 0 10
data_value
END
1.6.3. Output ¶
STORED
STORED :Output after being saved successfully NOT_STORED :Output after a failed save