read lock 读锁定 ; [计] 读锁 ; 读取锁
READ LOCK TIME 读取门锁时间
Lock tables before read 读表之前锁定
flush tables with read lock 数据库只读锁定命令 ; 防止导出数据库的时候有数据写入
Read Lock bits time 读锁定位时间
Table Read Lock 表同享读锁
global read lock 全局读锁
shared-for-read lock state 共读锁定状态
With this type of lock, concurrent applications can read from or write to the locked table.
有了这一类型的锁,并发应用程序就可以读或写已锁定的表。
When a table holds a Z lock, no concurrent application can read or update data in that table.
当表持有z锁时,任何并发应用程序都不能读取和更新该表中的数据。
It is a commonly held belief that you do not need to acquire a lock to simply read an object's fields, especially since the JLS guarantees that 32-bit reads will be atomic.
有一种普遍的观点是,如果只是要读一个对象的字段,不需要请求加锁,尤其是在JLS保证了32位读操作的原子性的情况下,它更是如此。
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