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小編給大家分享一下Redis中事務(wù)命令有哪些,相信大部分人都還不怎么了解,因此分享這篇文章給大家參考一下,希望大家閱讀完這篇文章后大有收獲,下面讓我們一起去了解一下吧!
發(fā)送MULTI命令,聲明事務(wù);EXEC執(zhí)行事務(wù)
Redis不支持事務(wù)回滾
redis 127.0.0.1:6379> SET key 1 OK redis 127.0.0.1:6379> SET key 2 OK redis 127.0.0.1:6379> SADD key 3 (error) ERR Operation against a key holding the wrong kind of value redis 127.0.0.1:6379> SADD key 3 4 (error) ERR Operation against a key holding the wrong kind of value redis 127.0.0.1:6379> SADD keynew 3 (integer) 1 redis 127.0.0.1:6379> MUTIL (error) ERR unknown command 'MUTIL' redis 127.0.0.1:6379> MULTI OK redis 127.0.0.1:6379> SET key 3 QUEUED redis 127.0.0.1:6379> SET keynew 4 QUEUED redis 127.0.0.1:6379> EXEC 1) OK 2) OK redis 127.0.0.1:6379> GET key "3" redis 127.0.0.1:6379> GET keynew "4" redis 127.0.0.1:6379>
監(jiān)控某個(gè)鍵值,如果被修改,阻止后面的事務(wù)執(zhí)行。僅僅防御性質(zhì)的。
redis 127.0.0.1:6379> SET key 1 OK redis 127.0.0.1:6379> WATCH key OK redis 127.0.0.1:6379> MULTI OK redis 127.0.0.1:6379> SET key 2 QUEUED redis 127.0.0.1:6379> EXEC 1) OK redis 127.0.0.1:6379> GET key "2" redis 127.0.0.1:6379>
redis 127.0.0.1:6379> SET keywatch 1 OK redis 127.0.0.1:6379> SET keywatch 2 OK redis 127.0.0.1:6379> WATCH keywatch OK redis 127.0.0.1:6379> SET keywatch 3 OK redis 127.0.0.1:6379> MULTI OK redis 127.0.0.1:6379> SET keywatch 8 QUEUED redis 127.0.0.1:6379> EXEC (nil) redis 127.0.0.1:6379> GET keywatch "3" redis 127.0.0.1:6379>
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