在Mysql 5.7中解析JSON列数组数据

我有一些这样的数据

Product Siz Color     RFIDs
GO1199  5XL WHIT    "[\"300ED89F335000B333B8CA8D\",\"300ED89F335000B333B8C5F3\",\"E2009A4050026AF000001928\"]"
GO1189  LAR WHIT    "[\"300ED89F335000B333B8CA8D\",\"300ED89F335000B333B8C5F3\",\"E2009A4050026AF000001928\"]"
GO1179  LAR WHIT    "[\"300ED89F335000B333B8CA76\",\"300ED89F335000B333B8C7C8\",\"300ED89F335000B333B8C58D\"]",
GO1169  LAR WHIT    "[\"300ED89F335000999A72D381\",\"300ED89F3350007FC4FDCCFB\",\"300ED89F3350007FC4FDDEF9\"]",
GO1199  LAR WHIT    "[\"300ED89F3350007FC4FDDF5E\",\"300ED89F3350007FC4FDDDE1\",\"300ED89F3350007FC4FDDDDF\"]"

最后一列是与该产品关联的RFID的数组。我想用SQL把它表达出来并像这样显示出来

Product Siz Color     RFID
GO1199  5XL WHIT    300ED89F335000B333B8CA8D
GO1199  5XL WHIT    300ED89F335000B333B8C5F3
GO1199  5XL WHIT    E2009A4050026AF000001928
GO1189  LAR WHIT    300ED89F335000B333B8CA8D
GO1189  LAR WHIT    300ED89F335000B333B8C5F3
GO1189  LAR WHIT    E2009A4050026AF000001928

谢谢

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很抱歉，这是5.7而不是MySQL 8.0中的8，请使用

json\u table（）

：

在早期版本中，它稍微复杂一些。基本上，您需要一个数字表来取消数组的测试：

select t.product, t.size, t.color, 
    json_unquote(json_extract(t.rfids, concat('$[', n.i, ']'))) rfid
from mytable t
inner join (select 0 i union all select 1 union all select 2) n
    on n.i < json_length(t.rfids)

选择t.产品、t.尺寸、t.颜色、，
json_unquote（json_extract（t.rfid，concat（“$[”，n.i，“]））rfid
来自MyT表
内部联接（选择0全部联接选择1全部联接选择2）n
n.i

您可以使用更多的数字展开子查询，以处理每个数组中超过3个项

：

product | size | color | rfid :------ | :--- | :---- | :----------------------- GO1199 | 5XL | WHIT | E2009A4050026AF000001928 GO1199 | 5XL | WHIT | 300ED89F335000B333B8C5F3 GO1199 | 5XL | WHIT | 300ED89F335000B333B8CA8D GO1189 | LAR | WHIT | E2009A4050026AF000001928 GO1189 | LAR | WHIT | 300ED89F335000B333B8C5F3 GO1189 | LAR | WHIT | 300ED89F335000B333B8CA8D GO1179 | LAR | WHIT | 300ED89F335000B333B8C58D GO1179 | LAR | WHIT | 300ED89F335000B333B8C7C8 GO1179 | LAR | WHIT | 300ED89F335000B333B8CA76 GO1169 | LAR | WHIT | 300ED89F3350007FC4FDDEF9 GO1169 | LAR | WHIT | 300ED89F3350007FC4FDCCFB GO1169 | LAR | WHIT | 300ED89F335000999A72D381 GO1199 | LAR | WHIT | 300ED89F3350007FC4FDDDDF GO1199 | LAR | WHIT | 300ED89F3350007FC4FDDDE1 GO1199 | LAR | WHIT | 300ED89F3350007FC4FDDF5E 产品|尺寸|颜色| rfid :------ | :--- | :---- | :----------------------- GO1199 5XL惠特E2009A4050026AF000001928 GO1199 | 5XL | WHIT | 300ED89F335000B333B8C5F3 GO1199 | 5XL | WHIT | 300ED89F335000B333B8CA8D GO1189 | LAR | WHIT | E2009A4050026AF000001928 GO1189 | LAR | WHIT | 300ED89F335000B333B8C5F3 GO1189 | LAR | WHIT | 300ED89F335000B333B8CA8D GO1179 | LAR | WHIT | 300ED89F335000B333B8C58D GO1179 | LAR | WHIT | 300ED89F335000B333B8C7C8 GO1179 | LAR | WHIT | 300ED89F335000B333B8CA76 GO1169 | LAR | WHIT | 300ED89F3350007FC4FDDEF9 GO1169 | LAR | WHIT | 300ED89F3350007FC4FDCCFB GO1169 | LAR | WHIT | 300ED89F335000999A72D381 GO1199 | LAR | WHIT | 300ED89F3350007FC4FDDDDF GO1199 | LAR | WHIT | 300ED89F3350007FC4FDDDE1 GO1199 | LAR | WHIT | 300ED89F3350007FC4FDDF5E

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对不起，这是5.7版本，不是8.0版本。@user618886:是的。。。在你编辑你的问题之前我就开始回答了。现在查看我的编辑。我有幸将我的实例升级到8，因此我将移动到8并在那里使用您的解决方案。谢谢你们这么快的回复。数组元素的计数是常数吗？ product | size | color | rfid :------ | :--- | :---- | :----------------------- GO1199 | 5XL | WHIT | E2009A4050026AF000001928 GO1199 | 5XL | WHIT | 300ED89F335000B333B8C5F3 GO1199 | 5XL | WHIT | 300ED89F335000B333B8CA8D GO1189 | LAR | WHIT | E2009A4050026AF000001928 GO1189 | LAR | WHIT | 300ED89F335000B333B8C5F3 GO1189 | LAR | WHIT | 300ED89F335000B333B8CA8D GO1179 | LAR | WHIT | 300ED89F335000B333B8C58D GO1179 | LAR | WHIT | 300ED89F335000B333B8C7C8 GO1179 | LAR | WHIT | 300ED89F335000B333B8CA76 GO1169 | LAR | WHIT | 300ED89F3350007FC4FDDEF9 GO1169 | LAR | WHIT | 300ED89F3350007FC4FDCCFB GO1169 | LAR | WHIT | 300ED89F335000999A72D381 GO1199 | LAR | WHIT | 300ED89F3350007FC4FDDDDF GO1199 | LAR | WHIT | 300ED89F3350007FC4FDDDE1 GO1199 | LAR | WHIT | 300ED89F3350007FC4FDDF5E