JPA itself doesn't provide declarative transaction management. Spring @Transactional simplifies transaction handling in Spring applications. Programmatic transaction management is error-prone and difficult to debug
SELECT FOR UPDATE locks entries in cursor set. Blocking is removed with commit or rollback commands. Can be used with WHERE CURRENT OF operator for updates
DataGridView displays recharge information in clickable format. Mobile number validation limited to 10 digits. Data can be updated using mouse events. Password change functionality available through toolstrip menu
Dropping tables removes all data but keeps user privileges and database objects. Database drop without tables drops all user permissions and objects
Running separate INSERT statements is slow due to separate processing. Repeating INSERT INTO, table name, and columns code is necessary. Errors can cause partial data insertion, requiring manual reruns
SSMS UI tools can delete tables without using SQL script. Tables can be selected and deleted using Object Explorer Details view. Database can be dropped and recreated to remove all tables