下列为防止幻读而设置的隔离级别,语句正确的是
A. SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
B. SET ISOLATION LEVEL READ UNCOMMITTED;
C. SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE;
D. SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
下面选项中,属于MySQL默认事务隔离级别的是
A. READ UNCOMMITTE
B. READ COMMITTED
C. REPEATABLE READ
D. SERIALIZABLE
SERIALIZABLE是事务的最高隔离级别,可以解决脏读、幻读、重复读的问题,所以实际应用中经常使用该级别。
A. 对
B. 错
1. ________________(就我而言), I love the summer best.2.It is raining heavily, so___________________(我们只能在家看书了).3.It’s already 9 o’clock. ___________________(醒醒).4. _________________(此外), what you said hurt me deeply.