mysql - 简易 SQL 查询分类

Question

我想用赢或输的分类填充赢列，赢定义为 1-3 名，输与其他所有内容一样。

Answer 1

UPDATE table set win = 'lose' WHERE place NOT in (1,2,3);
UPDATE table set win = 'win' WHERE place in (1,2,3);

或带有一点 CASE 语句

UPDATE table set win =  CASE WHEN place IN (1,2,3) THEN 'win' 
                             WHEN place NOT IN (1,2,3) THEN 'lose' 
                        END ;

Answer 2

这是您需要的查询吗？

update mytable set win = 'WIN' where place <= 3;
update mytable set win = 'LOSS' where place > 3;