Question

如果我在SQL Server的列中存储了以下JSON：

declare @json nvarchar(max) = '[{"id": "1", "name": "test1"},{"id": "2", "name": "test2"},{"id": "3", "name": "test4"}]'

如何删除Id：= 1的数组？

我想得到以下结果：

[{"id": "2", "name": "test2"},{"id": "3", "name": "test4"}]

Answer 1

试试这个：

    declare @json nvarchar(max) = '[{"id": "1", "name": "test1"},{"id": "2", "name": "test2"},{"id": "3", "name": "test4"}]';


    DECLARE @IdTobeRemoved INT =1;
    DECLARE @StartIndex INT
    DECLARE @EndIndex INT
    DECLARE @tempjson nvarchar(max)



    SELECT @StartIndex = CHARINDEX('"id": "'+CONVERT(VARCHAR(10),@IdTobeRemoved)+'"',@json)-2


    SELECT @tempjson = STUFF(@json, 1, @StartIndex, '')


    SELECT @EndIndex = 
                CASE WHEN SUBSTRING(@tempjson,CHARINDEX('}',@tempjson)+1,1)=']'
                    THEN CHARINDEX('}',@tempjson)+1
                    ELSE CHARINDEX('}',@tempjson)+2
                END


    SELECT REPLACE(REPLACE(@json,SUBSTRING(@tempjson,0,@EndIndex),''),'},]','}]')

从存储在SQL Server列中的json对象中删除数组

1 个答案: