在Android上的SQLite中，如何使用CASE对两个字段求和

我想显示字段尝试的总和和连接在一起的点的总和，但我只得到字段尝试的总和

SELECT
ContactName,
SUM(CASE WHEN event = 'Event1' THEN tries || '/' || points END) AS "E1",
SUM(CASE WHEN event = 'Event2' THEN tries || '/' || points END) AS "E2",
SUM(CASE WHEN event = 'Event3' THEN tries || '/' || points END) AS "E3",

FROM names
WHERE
period = 2
GROUP BY
ContactName

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我把这两个总数除掉，做了如下工作

SUM(CASE WHEN event = 'Event1' THEN tries END) || "/" || SUM(CASE WHEN event = 'Event1' THEN points END) AS "E1"

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您是否正在查找

group_concat（）

？在我的示例中，两个字段之间需要“/”的语法是什么？请尝试

group_concat（col_name separator“/”）