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DECRBY
Josh Baker edited this page Oct 11, 2016
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Decrements the number stored at key by decrement. If the key does not exist, it is set to 0 before performing the operation. An error is returned if the key contains a value of the wrong type or contains a string that can not be represented as integer. This operation is limited to 64 bit signed integers.
See INCR for extra information on increment/decrement operations.
Integer reply: the value of key after the decrement
> SET mykey "10"
OK
> DECRBY mykey 3
(integer) 7
APPEND, BITCOUNT, BITOP, BITPOS, DBSIZE, DECR, DECRBY, DEL, EXISTS, EXPIRE, EXPIREAT, FLUSHDB, GET, GETBIT, GETRANGE, GETSET, INCR, INCRBY, INCRBYFLOAT, KEYS, MGET, MSET, MSETNX, PDEL, PERSIST, PEXPIRE, PEXPIREAT, PTTL, RENAME, RENAMENX, SET, SETBIT, SETRANGE, STRLEN, TTL