명

왜 몰랐을까....

 mysql에 이렇게 유용한 함수가 있었군요.
 
GROUP_CONCAT([DISTINCT] expr [,expr ...]
             [ORDER BY {unsigned_integer | col_name | expr}
                 [ASC | DESC] [,col_name ...]]
             [SEPARATOR str_val])
mysql> SELECT student_name,
    ->     GROUP_CONCAT(test_score)
    ->     FROM student
    ->     GROUP BY student_name;
Or:
mysql> SELECT student_name,
    ->     GROUP_CONCAT(DISTINCT test_score
    ->               ORDER BY test_score DESC SEPARATOR ' ')
    ->     FROM student
    ->     GROUP BY student_name;
왜 몰랐을까..에혀.
|

댓글 4개

요거 문자열로 한방에 뽑아올때 좋더군뇽..
아.. 이런게 있었군요..
오호.. 좋은 팁이네요.
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