Configuration issues for database connection, including settings for database connection pool, database driver, and size of database connection pool.
Problem with entity class mapping: including inconsistencies between entity class fields and database table fields, and mismatching data types between entity class fields and database table fields.
Naming conventions for repository interface methods: Spring Data JPA requires that the names of repository interface methods adhere to certain standards, otherwise there may be issues with method recognition.
Issues with the use of data manipulation methods, such as using inappropriate methods or incorrectly calling data manipulation methods.
Transaction management issues include incorrect transaction management configuration, transactions not being properly started or committed, etc.
Issues with object-relational mapping: including incorrect mapping of one-to-one, one-to-many, and many-to-many relationships.
Performance issues: this includes data querying performance, data updating performance, and so on.
Exception handling issues: such as improper handling of JPA exceptions, transactional exceptions, and so on.
