{"id":19514591,"url":"https://github.com/jcoderpaul/jdbc_practice","last_synced_at":"2026-04-17T13:32:48.200Z","repository":{"id":175331273,"uuid":"607628319","full_name":"JcoderPaul/JDBC_Practice","owner":"JcoderPaul","description":"Examples of work with JDBC. DAO, CRUD concept. Simple SQL and Prepared Statement queries. Description in doc folder. Section cheat sheet. 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Java DataBase Connectivity — соединение с базами данных на Java) — \nплатформенно независимый промышленный стандарт взаимодействия Java-приложений \nс различными СУБД, реализованный в виде пакета java.sql, входящего в состав \nJava SE.\n\nJDBC основан на концепции так называемых драйверов, позволяющих получать \nсоединение с базой данных по специально описанному URL. Драйверы могут \nзагружаться динамически (во время работы программы). Загрузившись, драйвер \nсам регистрирует себя и вызывается автоматически, когда программа требует \nURL, содержащий протокол, за который драйвер отвечает.\n\n- [JDBCLessonOne](https://github.com/JcoderPaul/JDBC_Practice/tree/master/ConnectLessOne) - Пример создания соединения с базой данных PostgreSQL только \n                средствами Java;\n- [JDBCLessonTwo](https://github.com/JcoderPaul/JDBC_Practice/tree/master/ConnectLessTwo/src) - Пример создания соединения с базой данных PostgreSQL с \n                применением самописного [\"утилитного\" класса](https://github.com/JcoderPaul/JDBC_Practice/blob/master/ConnectLessTwo/src/connection_util/ConnectionManager.java);\n- [JDBCLessonThree](https://github.com/JcoderPaul/JDBC_Practice/tree/master/ConnectLessThree) - Пример создания соединения с базой данных с использованием\n                  файла свойств - [application.properties](https://github.com/JcoderPaul/JDBC_Practice/blob/master/ConnectLessThree/resources/application.properties);\n- [SqlOperationLess](https://github.com/JcoderPaul/JDBC_Practice/tree/master/SqlOperationLess) - Примеры создания и отправки SQL запросов к базе данных с использованием интерфейсов [Statement](https://github.com/JcoderPaul/JDBC_Practice/blob/master/Doc/Statement_Interface.txt) и [PrepareStatement](https://github.com/JcoderPaul/JDBC_Practice/blob/master/Doc/PreparedStatement_Interface.txt) ([особенности методов](https://github.com/JcoderPaul/JDBC_Practice/blob/master/SqlOperationLess/src/SQLQueryApp_8.java) и [возможные проблемы](https://github.com/JcoderPaul/JDBC_Practice/blob/master/SqlOperationLess/src/SQLQueryApp_6_bad.java));\n- [SqlAdvancedLess](https://github.com/JcoderPaul/JDBC_Practice/tree/master/SqlAdvancedLess) - Примеры создания SQL запросов при помощи методов [PrepareStatement](https://github.com/JcoderPaul/JDBC_Practice/blob/master/SqlAdvancedLess/src/SQLQueryApp_9.java), исследование методов [DatabaseMetaData](https://github.com/JcoderPaul/JDBC_Practice/blob/master/SqlAdvancedLess/src/SQLQueryApp_10.java) см. документацию [DatabaseMetaData](https://github.com/JcoderPaul/JDBC_Practice/blob/master/Doc/DatabaseMetaData_Interface.txt). [COMMIT и ROLLBACK](https://github.com/JcoderPaul/JDBC_Practice/blob/master/SqlAdvancedLess/src/SQLQueryApp_11.java) транзакций. Исследование пакетных [запросов Batch](https://github.com/JcoderPaul/JDBC_Practice/blob/master/SqlAdvancedLess/src/SQLQueryApp_12.java). Пример работы с [Blob и Clob](https://github.com/JcoderPaul/JDBC_Practice/blob/master/SqlAdvancedLess/src/SQLQueryApp_13.java) полями базы данных;\n- [ConnectionPoolLess](https://github.com/JcoderPaul/JDBC_Practice/tree/master/ConnectionPoolLess) - Пример [создания пула соединений](https://github.com/JcoderPaul/JDBC_Practice/blob/master/ConnectionPoolLess/src/connection_util/ConnectionPoolManager.java) и [исследование метода позволяющего извлекать любые автоматически\n  сгенерированные ключи](https://github.com/JcoderPaul/JDBC_Practice/blob/master/ConnectionPoolLess/src/CPMTestApp.java);\n- [DataAccessObjectLess](https://github.com/JcoderPaul/JDBC_Practice/tree/master/DataAccessObjectLess/src/DAOLessonsOne) - Исследование шаблона проектирования DAO (data access object), его [классов](https://github.com/JcoderPaul/JDBC_Practice/tree/master/DataAccessObjectLess/src/DAOLessonsOne/flight_repository_dao) и [сущностей](https://github.com/JcoderPaul/JDBC_Practice/tree/master/DataAccessObjectLess/src/DAOLessonsOne/flight_repository_entity) позволяющих взаимодействовать с базой данных. Пример применения шаблона проектирования [Data Transfer Object (DTO)](https://github.com/JcoderPaul/JDBC_Practice/tree/master/DataAccessObjectLess/src/DAOLessonsOne/flight_repository_dto), который используется для передачи данных между подсистемами приложения, использование специального [класса Record](https://github.com/JcoderPaul/JDBC_Practice/blob/master/Doc/Records.txt);\n- [DaoEntityMappingLess](https://github.com/JcoderPaul/JDBC_Practice/tree/master/DaoEntityMappingLess) - Пример работы [связанных сущностей](https://github.com/JcoderPaul/JDBC_Practice/tree/master/DaoEntityMappingLess/src/DAOLessonsTwo/flight_repository_dao) (как таблиц базы данных связанных внешним ключом) и применение принципов [data access object (DAO) на базе интерфейса](https://github.com/JcoderPaul/JDBC_Practice/blob/master/DaoEntityMappingLess/src/DAOLessonsTwo/flight_repository_dao/Dao.java).","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjcoderpaul%2Fjdbc_practice","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjcoderpaul%2Fjdbc_practice","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjcoderpaul%2Fjdbc_practice/lists"}