是否可以有条件地计数＆amp;在MySQL中添加行标签？

Question

我有一个数据集

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        <g class="node" transform="translate(0,25)">
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          <text x="10" dy=".35em" class="nodeText" text-anchor="start" style="fill-opacity: 1;"></text>
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    </g>
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我想数1和0来返回

HAPPY
1
0
0
0
0
1
1

Answer 1

select if (HAPPY=1, 'YES', 'NO') as Status,
    count(HAPPY) as Count from Table1 group by HAPPY order by Status desc;