[spring-jdbc-1] ivy.lee(이다예) 과제 제출합니다. #40
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| //TODO : 주어진 Id에 해당하는 customer를 객체로 반환 | ||
| return null; | ||
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| Customer customers = jdbcTemplate.queryForObject( |
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queryForObject 함수가 단일 객체를 반환한다는 점에서 customers라는 복수의 이름 대신 customer로 바꿔도 되지 않을까 생각합니다!
| //todo: id에 해당하는 customer를 지우고, 해당 쿼리에 영향받는 row 수반환하기 | ||
| return 0; | ||
| String sql = "delete from customers where id = ?"; | ||
| Integer affectedRow = jdbcTemplate.update(sql, Long.valueOf(id)); |
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Long.valueOf(id)id가 이미 Long type이기 때문에 Long으로 타입을 변환한 이유가 있을까요?- int가 아닌 Integer type으로 받은 이유가 있을까요?
lxeso
reviewed
Aug 16, 2024
| //todo: id에 해당하는 customer를 지우고, 해당 쿼리에 영향받는 row 수반환하기 | ||
| return 0; | ||
| String sql = "delete from customers where id = ?"; | ||
| Integer affectedRow = jdbcTemplate.update(sql, Long.valueOf(id)); |
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간결하게 ' return jdbcTemplate.update(sql, id);' 로 가도 괜찮을 것 같습니다!
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