SELECT lott.id as lottery_id,lott.abbr,lott.currency,payments.id as payment_id,
payment_prizes.prize_id,prizes.name,prizes.currency as prizes_currency
FROM lotteries lott
JOIN lottery_payments payments
ON
payments.lottery_id = lott.id
JOIN lottery_payment_prizes payment_prizes
ON
payment_prizes.payment_id = payments.id
JOIN lottery_prizes prizes
ON
prizes.id = payment_prizes.prize_id
WHERE lott.currency = "ID"
我需要更新 lottery_prizes 表中的所有货币,其中 ID 来自上面的查询。 我这样做了
UPDATE lottery_prizes SET currnecy = 'ID'
WHERE id IN(SELECT prizes.id
FROM lotteries lott
JOIN lottery_payments payments
ON
payments.lottery_id = lott.id
JOIN lottery_payment_prizes payment_prizes
ON
payment_prizes.payment_id = payments.id
JOIN lottery_prizes prizes
ON
prizes.id = payment_prizes.prize_id
WHERE lott.currency = "ID")
我有这个错误:
/* SQL 错误 (1093): 您不能在 FROM 子句中指定要更新的目标表 'lottery_prizes' */
谢谢大家
最佳答案
UPDATE lottery_prizes l
JOIN (SELECT prizes.id
FROM lotteries lott
JOIN lottery_payments payments
ON
payments.lottery_id = lott.id
JOIN lottery_payment_prizes payment_prizes
ON
payment_prizes.payment_id = payments.id
JOIN lottery_prizes prizes
ON
prizes.id = payment_prizes.prize_id
WHERE lott.currency = "ID") t
ON t.Id = l.Id
SET currency = 'ID'
关于mysql - 使用连接更新列,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4449836/