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https://dev.mysql.com/doc/connector-j/en/connector-j-installing-source.html
Extract contents of the archive into a folder named, for example, mysql-connector-j. Caution You need to install Connector/J from source only if you want to build a customized version of Connector/J or if you are interested in helping us test our ...
https://dev.mysql.com/doc/connector-j/en/connector-j-reference-dns-srv.html
In an X DevAPI connection pooling setup, Connector/J re-queries the DNS SRV records regularly and phases out gracefully any connections whose hosts no longer appear in the records, and readmits the connections into the pool when their hosts reappear ... Connector/J supports the use of DNS SRV records for ...
https://dev.mysql.com/doc/connector-j/en/connector-j-testing.html
The test cases are divided into the following categories: Unit tests: They are methods located in packages aligning with the classes that they test. The Connector/J source code repository or packages that are shipped with source code include an ...
https://dev.mysql.com/doc/connector-j/en/connector-j-usagenotes-j2ee-concepts-connection-pooling.html
Connection pooling is a technique of creating and managing a pool of connections that are ready for use by any thread that needs them. Connection pooling can greatly increase the performance of your Java application, while reducing overall resource ...
https://dev.mysql.com/doc/connector-j/en/connector-j-usagenotes-j2ee-concepts-load-balancing-failover.html
There are a few convenient shortcuts built into this, for those who want to have some level of control using properties, without writing Java code. Connector/J provides a useful load-balancing implementation for MySQL Cluster or multi-source ...
https://dev.mysql.com/doc/connector-j/en/connector-j-usagenotes-spring-config-transactional.html
Spring allows us to add transactions into our code without having to deal directly with the JDBC classes. For that purpose, Spring provides a transaction management package that not only replaces JDBC transaction management, but also enables ...
https://dev.mysql.com/doc/refman/8.4/en/aggregate-functions-and-modifiers.html
They are often used with a GROUP BY clause to group values into subsets. For information about aggregate functions that operate on geometry values, see Section 14.16.12, “Spatial Aggregate Functions”.
https://dev.mysql.com/doc/refman/8.4/en/all-subqueries.html
The expression is TRUE if table t2 contains (-5,0,+5) because 10 is greater than all three values in t2. The expression is FALSE if table t2 contains (12,6,NULL,-100) because there is a single value 12 in table t2 that is greater than 10. The ...
https://dev.mysql.com/doc/refman/8.4/en/alter-instance.html
This feature is intended only for loading data into a new MySQL instance. ALTER INSTANCE instance_action instance_action: { | {ENABLE|DISABLE} INNODB REDO_LOG | ROTATE INNODB MASTER KEY | ROTATE BINLOG MASTER KEY | RELOAD TLS [FOR CHANNEL ...
https://dev.mysql.com/doc/refman/8.4/en/apis-perl.html
The Perl DBI module provides a generic interface for database access. You can write a DBI script that works with many different database engines without change. To use DBI with MySQL, install the following: The DBI module. Optionally, the DBD ...