Fine-Tuning MySQL for Your Business Needs and Growth Wednesday, February 05, 2025 More » White Papers MySQL Enterprise Edition for Financial Services Migrate from MariaDB to MySQL Introduction to MySQL and Healthcare HeatWave AutoML - In Database Machine Learning ...
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MySQL连接器支持所有兼容MySQL协议的数据库,包括RDS MySQL、PolarDB for MySQL、OceanBase(MySQL模式)或者自建MySQL。 重要 建议使用本连接器,而不要采用RDS MySQL连接器,后续我们将下线连接器中的云数据库RDS MySQL版文档。 支持使用MySQL连接器读取OceanBase。使用MySQL连接器读取OceanBase时,请确保OceanBase Binlog已开启...
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在普通的select语句后边加 for update,如果当前事务执行了该语句,那么它会为读取到的记录加X锁,这样既不允许别的事务继续获取这些记录的S锁(比方说别的事务也使用select... lock in share mode语句来读取这些记录),也不允许获取这些记录的X锁(比如使用select ... for update语句来读取这些记录,或者直接修改这些...
您可以使用 Maven 執行 mvn exec:java -Dexec.mainClass="com.example.demo.DemoApplication" 以執行應用程式。應用程式應該連線到 適用於 MySQL 的 Azure 資料庫 彈性伺服器實例、建立資料庫架構,然後關閉連線,如控制台記錄中所見:輸出 複製 [INFO ] Loading application properties [INFO ] Connecting to the ...
Get the database property: Database name for connection. Type: string. Returns: the database value.driverVersion public Object driverVersion() Get the driverVersion property: The version of the MySQL driver. Type: string. V1 or empty for legacy driver, V2 for new driver. V1 can support ...
本文只是给出了解决内存溢出的一个方向,具体的底层原理请自行探索。 参考资料 [1] sp_head:https://dev.mysql.com/doc/dev/mysql-server/latest/classsp__head.html#details [2] 86821:https://bugs.mysql.com/bug.php?id=86821
classShared_dictionary_cache{...Shared_multi_map<Abstract_table>m_abstract_table_map;Shared_multi_map<Charset>m_charset_map;Shared_multi_map<Collation>m_collation_map;Shared_multi_map<Column_statistics>m_column_stat_map;Shared_multi_map<Event>m_event_map;Shared_multi_map<Resource_group>m_resour...
AnalyticDB for MySQLClient本身依赖druid(1.1.10)、mysql-connector-java(5.1.45)、commons-lang3(3.4)、slf4j-api(1.7.25)和slf4j-log4j12(1.7.25),如果在使用过程中,出现版本冲突,请检查这几个包的版本并解决冲突。 AnalyticDB for MySQLClient SDK是非线程安全的,如果多线程调用时,需要每个线程维护自己的Clien...