0
我有一个Bson,其中嵌入文档遵循以下结构。我想知道如何在特定日期获取变量的值(“2014-08-09”:53.0)或库存值(“2014-08-09”:0.0) 。在MongoDB中查询嵌入文档
{
"_id" : ,
"last_modified" : "",
"client" : "",
"credentials" : [],
"tags" : [],
"variables" : [
{
"name" : "sales",
"_values" : {
"2014-08-09" : 53.0,
...
},
"tags" : [],
"is_target" : true,
"method1" : "",
"method2" : "",
"vtype" : ,
"index_type" :
},
{
"name" : "inventory",
"_values" : {
"2014-08-09" : 0.0,
...
},
"tags" : [],
"is_target" : ,
"method1" : "",
"method2" : "",
"vtype" : ,
"index_type" :
},
{
"name" : "price",
"_values" : {},
"tags" : [],
"is_target" : ,
"method2" : "",
"method1" : "",
"vtype" : ,
"index_type" :
}
}
}