Demonstration of isolation levels for transactions: Demonstration of serialization

1.1.1 Demonstration of serialization
l Open two windows A, B
l Set the isolation level of window A: serializable
SET SESSION TRANSACTION ISOLATION LEVEL serializable;

l Open transactions in two windows respectively:
start transaction;

l Insert in window B A record
insert into account values ​​(null,'Xiao Li',10000);

l Query
select * from account in the A window;
***** found that the A window has been stuck (indicating that the transaction does not allow concurrency, A The window needs to wait for the completion of the transaction of window B before executing the transaction of window A.) When the transaction of window B ends (commit or rollback), the result of window A will appear immediately.