07. Querydsl 상수, 문자 더하기

[전체소스코드]

 

// 상수더하기
Tuple result = queryFactory
        .select(member.username, Expressions.constant("A"))
        .from(member)
        .fetchFirst();

System.out.println(result);
// result : [member1, A]

 

// 문자더하기
String result = queryFactory
        .select(member.username.concat("_").concat(member.age.stringValue()))
        .from(member)
        .where(member.username.eq("member1"))
        .fetchOne();

System.out.println(result);
// result : member1_10