decr
Decrement a numerical key’s value by the given number if the key/value pair exists.
syntax:
decr <key> <value> [noreply]
parameters:
- key - The name of the unique key by which data is accessed.
- value - The data that needs to be stored.
- noreply - This optional parameter tells the server not to send any reply.
example:
decr mykey 3 2
output notes:
- 3 → Subtract 3 from the value of “mykey”
- In this example, if “mykey” had a value of “5”, after running decr, its value would be “2”.
possible errors:
- NOT_FOUND - Indicates that the provided key does not exist in the LSMCD server.
- CLIENT_ERROR - Indicates that the value associated with the provided key is not numerical.
- ERROR - Indicates any other error such as a syntax error.