12、事务总结

# 查看日志相关的配置参数
show global variables like '%innodb%log%';

事务控制语句
#查看是否开启自动提交功能
show global variables like 'autocommint%';
show session variables like 'autocommint%';
#关闭当前会话的autocommint功能
set @@session.autocommint = 0

1. start transaction/begin    开始
2. commint/commint work       提交
3. rollback/rollbackwork      回滚
4. savepoint                  标识符
5. rollback to savepoint      回滚到指定保存点
6. release savepoint          删除保存点



事务隔离级别
#查看当前设置的隔离级别
show variables like 'tx_isolation';

REPEATABLE-READ   可重读
SERIALIZABLE      串行化
READ-COMMINTTED   读已提交
READ-UNCOMMINTTED 读未提交