Mysql 数量增加会锁表吗
UPDATE table SET balance = balance+1 WHERE uid = 1
UPDATE table SET balance = balance+1 WHERE uid = 1
UPDATE table SET balance = balance+1 WHERE uid = 1
UPDATE table SET balance = balance+1 WHERE uid = 1
是不是有行锁
UPDATE table SET balance = balance+1 WHERE uid = 1
UPDATE table SET balance = balance+1 WHERE uid = 1
UPDATE table SET balance = balance+1 WHERE uid = 1
是不是有行锁