请输入您要查询的英文单词:
单词
predicate lock
释义
predicate lock
简明释义
谓词逻辑锁:指在计算机科学中,用于保护并发访问共享资源的一种同步机制。它通过在访问共享资源之前获取锁,并在使用完毕后释放锁,来确保同一时间只有一个线程可以访问该资源。
网络释义
短语
1
predicate logic lock
谓词逻辑锁
双语例句
1
So to find the row that satisfies the
predicate
in the select statement, the optimizer has to
lock
, read in, and compare all the rows in the main table with the value supplied in the
predicate
.
因此要找到满足 select 语句中谓词的行,这个优化器必须将主表中的所有行上锁、读取它们的值并与谓词中提供的值进行比较。
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更新时间:2025/2/15 8:33:26