从JSON数组中删除元素,不带键
我正在寻找一种在SQL Server中从JSON数组中删除元素的方法,我尝试使用JSON_MODIFY/OPENPATH,但似乎无法正确获取path参数 下面是我想做的转换示例:从JSON数组中删除元素,不带键,json,sql-server,json-query,open-json,Json,Sql Server,Json Query,Open Json,我正在寻找一种在SQL Server中从JSON数组中删除元素的方法,我尝试使用JSON_MODIFY/OPENPATH,但似乎无法正确获取path参数 下面是我想做的转换示例: [{"FieldName":"OrderStatusTypeId","FieldType":"Int32","ValueBefore":"8","ValueAfter":"
[{"FieldName":"OrderStatusTypeId","FieldType":"Int32","ValueBefore":"8","ValueAfter":"10","Action":2},{"FieldName":"PatientReferenceNumber","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2}]
将是:
[{"FieldName":"OrderStatusTypeId","FieldType":"Int32","ValueBefore":"8","ValueAfter":"10","Action":2}]
基本上,我想删除数组中的任何元素,操作
是2,ValueBefore
和ValueAfter
字段是相同的
以下是我目前正在尝试的测试,但我不断得到以下错误:
DECLARE @JSONData AS NVARCHAR(4000)
SET @JSONData = N'[{"FieldName":"OrderStatusTypeId","FieldType":"Int32","ValueBefore":"8","ValueAfter":"10","Action":2},{"FieldName":"PatientReferenceNumber","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"PoNumber","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"ReferringPhysicianName","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"InsuranceProvider","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"TreatmentId","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"RowVersion[6]","FieldType":"Byte","ValueBefore":"10","ValueAfter":"115","Action":2},{"FieldName":"OrderStatusType.Id","FieldType":"Int32","ValueBefore":"8","ValueAfter":"10","Action":2},{"FieldName":"OrderStatusType.Description","FieldType":"String","ValueBefore":"Delivered","ValueAfter":"Failed Logistics","Action":2},{"FieldName":"OrderStatusType.IsSelectable","FieldType":"Boolean","ValueBefore":"False","ValueAfter":"True","Action":2}]'
SELECT @JSONData = JSON_MODIFY(@JSONData, '$',
JSON_QUERY(
(
SELECT *
FROM OPENJSON(@JSONData, '$') WITH (
FieldName nvarchar(1000) '$.FieldName',
FieldType nvarchar(1000) '$.FieldType',
ValueBefore nvarchar(1000) '$.ValueBefore',
ValueAfter nvarchar(1000) '$.ValueAfter',
Action int '$.Action'
)
WHERE Action <> 2 AND ValueBefore <> ValueAfter
FOR JSON PATH
)
)
)
如何计算出正确的JSON路径值,我在网上找到的所有示例都没有数组作为JSON字符串的根元素
注意,元素的顺序并不重要。您不必在这里使用JSON\u MODIFY。您只需选择所需的数据作为表,对其进行过滤,然后将其重新编码为JSON
DECLARE @JSONData AS NVARCHAR(4000)
SET @JSONData = N'[{"FieldName":"OrderStatusTypeId","FieldType":"Int32","ValueBefore":"8","ValueAfter":"10","Action":2},{"FieldName":"PatientReferenceNumber","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"PoNumber","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"ReferringPhysicianName","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"InsuranceProvider","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"TreatmentId","FieldType":"String","ValueBefore":"","ValueAfter":"","Action":2},{"FieldName":"RowVersion[6]","FieldType":"Byte","ValueBefore":"10","ValueAfter":"115","Action":2},{"FieldName":"OrderStatusType.Id","FieldType":"Int32","ValueBefore":"8","ValueAfter":"10","Action":2},{"FieldName":"OrderStatusType.Description","FieldType":"String","ValueBefore":"Delivered","ValueAfter":"Failed Logistics","Action":2},{"FieldName":"OrderStatusType.IsSelectable","FieldType":"Boolean","ValueBefore":"False","ValueAfter":"True","Action":2}]'
set @JSONData =
(
SELECT *
FROM OPENJSON(@JSONData, '$') WITH (
FieldName nvarchar(1000) '$.FieldName',
FieldType nvarchar(1000) '$.FieldType',
ValueBefore nvarchar(1000) '$.ValueBefore',
ValueAfter nvarchar(1000) '$.ValueAfter',
Action int '$.Action'
)
WHERE not (Action = 2 and ValueBefore = ValueAfter)
FOR JSON PATH
)
JSON是
[
{
"FieldName": "OrderStatusTypeId",
"FieldType": "Int32",
"ValueBefore": "8",
"ValueAfter": "10",
"Action": 2
},
{
"FieldName": "RowVersion[6]",
"FieldType": "Byte",
"ValueBefore": "10",
"ValueAfter": "115",
"Action": 2
},
{
"FieldName": "OrderStatusType.Id",
"FieldType": "Int32",
"ValueBefore": "8",
"ValueAfter": "10",
"Action": 2
},
{
"FieldName": "OrderStatusType.Description",
"FieldType": "String",
"ValueBefore": "Delivered",
"ValueAfter": "Failed Logistics",
"Action": 2
},
{
"FieldName": "OrderStatusType.IsSelectable",
"FieldType": "Boolean",
"ValueBefore": "False",
"ValueAfter": "True",
"Action": 2
}
]
[
{
"FieldName": "OrderStatusTypeId",
"FieldType": "Int32",
"ValueBefore": "8",
"ValueAfter": "10",
"Action": 2
},
{
"FieldName": "RowVersion[6]",
"FieldType": "Byte",
"ValueBefore": "10",
"ValueAfter": "115",
"Action": 2
},
{
"FieldName": "OrderStatusType.Id",
"FieldType": "Int32",
"ValueBefore": "8",
"ValueAfter": "10",
"Action": 2
},
{
"FieldName": "OrderStatusType.Description",
"FieldType": "String",
"ValueBefore": "Delivered",
"ValueAfter": "Failed Logistics",
"Action": 2
},
{
"FieldName": "OrderStatusType.IsSelectable",
"FieldType": "Boolean",
"ValueBefore": "False",
"ValueAfter": "True",
"Action": 2
}
]