As you know, one of the most eagerly waited features was released with MySQL 8.2: thetransparent read/write splitting. In this post, we’ll look at how to use it withMySQL-Connector/Python. Architecture To play
Recently I was working with a customer wherein our focus was to carry out a performance audit of their multiple MySQL database nodes. We started looking into the stats of the performance schema. While working, the customer raised two interesting questions: how can he make complete use of the...
COMMIT; UNLOCK TABLES; What will happen if the system crash between the LOCK AND the UNLOCK? Am I forced to restart the database? Now, what I'm doing is catch an exception in Php in order to force CALL "UNLOCK TABLES" Thanks in advance, Alberto...
Commit transactions immediately after making a set of related changes to make them less prone to collision. In particular, do not leave an interactivemysqlsession open for a long time with an uncommitted transaction. If you uselocking reads(SELECT ... FOR UPDATEorSELECT ... FOR SHARE), try ...
To play with our Python program, we will use an InnoDB Cluster. This is an overview of the cluster in MySQL Shell: Copy code snippet Copied to Clipboard Error: Could not Copy Copied to Clipboard Error: Could not Copy JS>cluster.status(){"clusterName":"fred","defaultReplicaSet":{"name"...
There are multiple ways to find tables and analyze them for optimization. Start by connecting to your MySQL database: USE [database_name];Copy Depending on your use case, try the queries below to see how to find optimization candidates. ...
1. Access mysqld.cnf File Use your preferredtext editor, such asnano, to open the MySQL config file,mysqld.cnf. Enter the following command in your command-line interface to access the MySQL server configuration file: sudo nano /etc/mysql/mysql.conf.d/mysqld.cnfCopy ...
HowtoLogout Usethecommandexitorquit torch:~$mysql-p Enterpassword: WelcometotheMySQLmonitor.Commandsendwith;or\g. YourMySQLconnectionidis123975toserverversion:4.0.12 Type'help;'or'\h'forhelp.Type'\c'toclearthebuffer. mysql>exit Bye torch:~$ ...
useSqlserver2012(sqlserver):使用 SqlServer2012 数据库时,需要手动指定为 sqlserver2012,否则会使用 SqlServer2005 的方式进行分页,还可以设置 useSqlserver2012=true将2012改为sqlserver的默认方式。 defaultCount:用于控制默认不带 count 查询的方法中,是否执行 count 查询,默认 true 会执行 count 查询,这是一个全...
Com_commit 110749 Com_create_db 0 Com_create_event 5 Com_create_function 0 Com_create_index 1 Com_create_procedure 43 Com_create_server 0 Com_create_table 15 Com_create_trigger 6 Com_create_udf 0 Com_create_user 0 Com_create_view 2 Com_dealloc_sql 0 Com_delete 21...