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I want to retrieve all rows from a table in MySQL table where there is a JSON column called items with content like this:

[{"code":"MH005","qte":1,"totalpriceItem":"28.00"},{"code":"MH027","qte":1,"totalpriceItem":"28.00"}]
[{"code":"MH027","qte":1,"totalpriceItem":"30.00"}]
[{"code":"MH024","qte":1,"totalpriceItem":"28.00"},{"code":"MH028","qte":1,"totalpriceItem":"28.00"},{"code":"MH027","qte":1,"totalpriceItem":"28.00"}]
[{"code":"MH028","qte":1,"totalpriceItem":"30.00"}]

Now i want to be able to select all the row where the key code has the value MH027.

I've tried this but without success:

SELECT *
FROM `transactions`
WHERE JSON_CONTAINS(`item`, 'MH027', '$[*].code')

Any help is much appreciated.

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  • What version of MySQL are you using? And what exactly do you mean by Items.Row1, Items.Row2 etc Commented Oct 27, 2021 at 14:04
  • Mysql version : mysql 8.0.18 & mariaDB 10.4.10 it mean the content of JSON field in each row inserted in the table Commented Oct 27, 2021 at 14:08

1 Answer 1

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If I understand correctly you need to use JSON_CONTAINS as follows:

SELECT *
FROM transactions
WHERE JSON_CONTAINS(item, '{"code": "MH027"}', '$')

The second parameter must be valid JSON. You could use JSON_OBJECT('code', 'MH028') if the value is dynamic or could contain special characters.

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3 Comments

Hey sorry to bother again i know this is an answered question but i just want to know how can i tweak it so i can select all the transactions that they had item start with "MH%"
That would be a different question. I would use JSON_TABLE.
can you point me please ?

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