如何编写 N1QL 查询以获取所有 ordrqty 等于 102 的 SaleDt1

如何解决如何编写 N1QL 查询以获取所有 ordrqty 等于 102 的 SaleDt1

/* 下面是示例文档*/

 [
     {
    "trans-data": 
        { 
       "$Docver":"1.0","ManufId":"1234543","ToyDot": 
                 {
                   "GrossAmt":"675","Wqty":"200"
                  },"Mflnitmlst": 
                   [
                      {
                        "Mfprcdv":"25000","SaleDt1":
                          [
                            {
                              "Mtid":"0987655","ordrqty":"102","Plainqty":"1000"
                             }
                          ]
                       },{
                        "Mfprcdv":"25000","SaleDt1":
                          [
                            {
                              "Mtid":"0987656","ordrqty":"110","Plainqty":"1500"
                             }
                          ]
                      },"SaleDt1":
                          [
                            {
                              "Mtid":"0987657","ordrqty":"120","Plainqty":"2000"
                             }
                          ]
                      }
                   ],"Tmstp":"2021-03-04T14:23:21","Sectn":"XYZ"
       }
     },{
    "trans-data": 
        {
        "$Docver":"1.0","ToyDot": 
                 {
                   "GrossAmt":"605","Wqty":"100"
                  },"Mflnitmlst": 
                   [
                      {
                        "Mfprcdv":"26000","SaleDt1":
                          [
                            {
                              "Mtid":"1987655",{
                        "Mfprcdv":"26000","SaleDt1":
                          [
                            {
                              "Mtid":"1987656","SaleDt1":
                          [
                            {
                              "Mtid":"1987657","Sectn":"XYZ"
       }
     }
    ]

                 

解决方法

假设您的文档以 ARRAY 开头

SELECT dmfl.SaleDt1
FROM mybucket AS mb
UNNEST mb AS d
UNNEST d.`trans-data`.Mflnitmlst AS dmfl
WHERE ANY v IN dmfl.SaleDt1 SATISFIES v.ordrqty = "102" END;

如果你想要只有“102”的对象

SELECT sld.*
FROM mybucket AS mb
UNNEST mb AS d
UNNEST d.`trans-data`.Mflnitmlst AS dmfl
UNNEST dmfl.SaleDt1 AS sld
WHERE sld.ordrqty = "102";

如果您的文档不是 ARRAY，则它是对象

SELECT sld.*
FROM mybucket AS mb
UNNEST mb.`trans-data`.Mflnitmlst AS dmfl
UNNEST dmfl.SaleDt1 AS sld
WHERE sld.ordrqty = "102";

结帐https://docs.couchbase.com/server/current/n1ql/n1ql-language-reference/indexing-arrays.html

更新：使用插入和选择

INSERT INTO default VALUES ("f01",[ { "trans-data": { "$Docver":"1.0","ManufId":"1234543","ToyDot": { "GrossAmt":"675","Wqty":"200" },"Mflnitmlst": [ { "Mfprcdv":"25000","SaleDt1": [ { "Mtid":"0987655","ordrqty":"102","Plainqty":"1000" } ] },{ "Mfprcdv":"25000","SaleDt1": [ { "Mtid":"0987656","ordrqty":"110","Plainqty":"1500" } ] },"SaleDt1": [ { "Mtid":"0987657","ordrqty":"120","Plainqty":"2000" } ] } ],"Tmstp":"2021-03-04T14:23:21","Sectn":"XYZ" } },{ "trans-data": { "$Docver":"1.0","ToyDot": { "GrossAmt":"605","Wqty":"100" },"Mflnitmlst": [ { "Mfprcdv":"26000","SaleDt1": [ { "Mtid":"1987655",{ "Mfprcdv":"26000","SaleDt1": [ { "Mtid":"1987656","SaleDt1": [ { "Mtid":"1987657","Sectn":"XYZ" } } ]);

SELECT dmfl.SaleDt1
FROM default AS mb USE KEYS "f01"
UNNEST mb AS d
UNNEST d.`trans-data`.Mflnitmlst AS dmfl
WHERE ANY v IN dmfl.SaleDt1 SATISFIES v.ordrqty = "102" END;

如果存储桶名称是 trans-data 并且您的示例文档来自选择查询

SELECT dmfl.SaleDt1
FROM `trans-data` AS mb
UNNEST mb.Mflnitmlst AS dmfl
WHERE ANY v IN dmfl.SaleDt1 SATISFIES v.ordrqty = "102" END;