SQL 其中列包含 Json 的數組

Question

我正在嘗試查詢包含 json 對象數組的列。

object 的數組如下所示：

[
{
    "TYPE": "car",
    "NAME": "lucy"
},
{
    "TYPE": "bus",
    "NAME": "bob"
},
{
    "TYPE": "car",
    "NAME": "mary"
}
]

如果列包含 type = "car" 和 name = "lucy" 的對象，我正在嘗試 select

Answer 1

您可以使用OPENJSON將數組拆分為單獨的行：

SELECT j.*
FROM YourTable t
CROSS APPLY OPENJSON(t.) WITH (
    [TYPE] varchar(50),
    [NAME] varchar(50)
) j
WHERE j.[TYPE] = 'car' AND j.[NAME] = 'lucy'

或者，如果您只想基於此過濾主表，請將其放在WHERE

SELECT t.*
FROM YourTable t
WHERE EXISTS (SELECT 1
    FROM OPENJSON(t.) WITH (
        [TYPE] varchar(50),
        [NAME] varchar(50)
    ) j
    WHERE j.[TYPE] = 'car' AND j.[NAME] = 'lucy'
);