flink-connector-jdbc-mysql/src/main/java/org/apache/flink/connector/jdbc/mysql/database/dialect/MySqlDialect.java
flink-connector-jdbc-oracle/src/main/java/org/apache/flink/connector/jdbc/oracle/database/dialect/OracleDialect.java

flink-connector-jdbc-mysql/src/main/java/org/apache/flink/connector/jdbc/mysql/database/MySqlFactory.java
flink-connector-jdbc-oracle/src/main/java/org/apache/flink/connector/jdbc/oracle/database/OracleFactory.java