将代理商名称和电话与地址SQL查询分开

如何解决将代理商名称和电话与地址SQL查询分开

我想将城市名称与数据库中的地址分开。 采用以下格式。

OrderId AgencyName Phone
1234    Test       [phone]

表格数据采用以下格式。

OrderId   DataValue
1234      {"AgencyName":"Test","Phone":"[phone]","submit":false}

解决方法

如果您具有JSON值，请使用JSON_VALUE()：

select orderid,json_value(datavalue,'$.AgencyName') agencyname,'$.Phone') phone
from mytable

请注意，这需要SQL Server 2016或更高版本。

,

对于较低版本，您可以使用-

public class MongoBarConversion {

    @Component
    @ReadingConverter
    public static class ToBarConverter implements Converter<Document,Bar> {

        private final ObjectMapper mapper;

        @Autowired
        public ToBarConverter(ObjectMapper mapper) {
            this.mapper = mapper;
        }

        public Bar convert(Document source) {
            JsonNode json = toJson(source);
            setObjectId(source,json);
            return mapper.convertValue(json,new TypeReference<Bar>() {
            });
        }

        protected void setObjectId(Document source,JsonNode jsonNode) {
            ObjectNode modifiableObject = (ObjectNode) jsonNode;
            String objectId = getObjectId(source);
            modifiableObject.put(ID_FIELD,objectId);
        }

        protected String getObjectId(Document source) {
            String objectIdLiteral = null;
            ObjectId objectId = source.getObjectId("_id");
            if (objectId != null) {
                objectIdLiteral = objectId.toString();
            }
            return objectIdLiteral;
        }


        protected JsonNode toJson(Document source) {
            JsonNode node = null;
            try {
                String json = source.toJson();
                node = mapper.readValue(json,JsonNode.class);
            } catch (JsonProcessingException e) {
                throw new RuntimeException(e);
            }
            return node;
        }

    }


    @Component
    @WritingConverter
    public static class ToDocumentConverter implements Converter<Bar,Document> {

        private final ObjectMapper mapper;

        @Autowired
        public ToDocumentConverter(ObjectMapper mapper) {
            this.mapper = mapper;
        }

        public Document convert(Bar source) {
            try {
                JsonNode jsonNode = toJson(source);
                setObjectId(source,jsonNode);
                String json = mapper.writeValueAsString(jsonNode);
                return Document.parse(json);
            } catch (JsonProcessingException e) {
                throw new RuntimeException(e);
            }
        }

        protected void setObjectId(Bar source,JsonNode jsonNode) throws JsonProcessingException {
            ObjectNode modifiableObject = (ObjectNode) jsonNode;
            JsonNode objectIdJson = getObjectId(source);
            modifiableObject.set("_id",objectIdJson);
            modifiableObject.remove(ID_FIELD);
        }

        protected JsonNode getObjectId(Bar source) throws JsonProcessingException {
            ObjectNode _id = null;
            String id = source.getId();
            if (id != null) {
                _id = JsonNodeFactory.instance.objectNode();
                _id.put("$oid",id);
            }
            return _id;
        }

        protected JsonNode toJson(Bar source) {
            return mapper.convertValue(source,JsonNode.class);
        }
    }


}