Collections:
Transaction Roll Back when Session Ended in MySQL
What Happens to the Current Transaction If the Session Is Ended in MySQL?
✍: FYIcenter.com
If a session is ended, the current transaction in that session will be rolled back and ended. All the database changes made in the current transaction will be removed. This is called an implicit rollback when session is ended.
The following tutorial exercise shows you that the "quit" command forces the current transaction to be rolled back and ended. When the session is reconnected, you will not see the changes made by the UPDATE statements in the previous session:
>\mysql\bin\mysql -u dev -piyf fyi mysql> START TRANSACTION; Query OK, 0 rows affected (0.01 sec) mysql> UPDATE fyi_links SET url = 'FYICENTER.COM' WHERE id = 101; Query OK, 1 row affected (0.01 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> UPDATE fyi_links SET url = 'CENTERFYI.COM' WHERE id = 110; Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> quit; Bye >\mysql\bin\mysql -u dev -piyf fyi mysql> SELECT * FROM fyi_links; +-----+---------------+-------+--------+-------------------- | id | url | notes | counts | created +-----+---------------+-------+--------+-------------------- | 101 | fyicenter.com | Good | 999 | 2006-07-01 20:34:10 | 110 | centerfyi.com | Wrong | 0 | 2006-07-01 20:34:12 | 112 | oracle.com | NULL | NULL | 2006-07-01 20:41:12 | 113 | mysql.com | NULL | NULL | 2006-07-01 20:41:21 +-----+---------------+-------+--------+-------------------- 4 rows in set (0.01 sec)
⇒ Transaction Roll Back when Session Killed in MySQL
⇐ Transaction Committed when DDL Statement Executed in MySQL
2017-08-03, 1974🔥, 0💬
Popular Posts:
How To Get the Definition of a Stored Procedure Back in SQL Server Transact-SQL? If you want get the...
How REAL and FLOAT Literal Values Are Rounded in SQL Server Transact-SQL? By definition, FLOAT(n) sh...
How To Query Tables and Loop through the Returning Rows in MySQL? The best way to query tables and l...
How To Drop a Stored Procedure in Oracle? If there is an existing stored procedure and you don't wan...
How To Generate Random Numbers with the RAND() Function in SQL Server Transact-SQL? Random numbers a...