C# 在documentDB中按子字符串搜索
这是示例文档DB文档 我想获取所有在一个或多个科目中失败的文档 我找到了类似的东西C# 在documentDB中按子字符串搜索,c#,search,sql-like,azure-cosmosdb,C#,Search,Sql Like,Azure Cosmosdb,这是示例文档DB文档 我想获取所有在一个或多个科目中失败的文档 我找到了类似的东西 SELECT * FROM students s JOIN c IN s.subjects WHERE c.result = "pass" 我想用c代码检索 { "id": "0066a253-f042-4213-b06e-65b1ea1e49aa", "name": "Sunny", "rollNo": 123, "class": "2nd", "section": "B",
SELECT
*
FROM students s
JOIN c IN s.subjects
WHERE c.result = "pass"
我想用c代码检索
{
"id": "0066a253-f042-4213-b06e-65b1ea1e49aa",
"name": "Sunny",
"rollNo": 123,
"class": "2nd",
"section": "B",
"Department": {
"name": "CSE",
"id": "cse",
"subjects": [
{
"id": "subject-1",
"marksObtained": 66,
"maxMarks": 100,
"result": "pass"
},
{
"id": "subject-2",
"marksObtained": 56,
"maxMarks": 75,
"result": "pass"
},
{
"id": "subject-3",
"marksObtained": 22,
"maxMarks": 100,
"result": "fail"
},
{
"id": "subject-4",
"marksObtained": 36,
"maxMarks": 50,
"result": "pass"
},
{
"id": "subject-5",
"marksObtained": 16,
"maxMarks": 100,
"result": "fail"
}
]
},
"Type": "Student"
}
我试过这样做
var result = client.CreateDocumentQuery<dynamic>(dc.SelfLink, "SELECT s.id as id,s.Name as Name,s.Age as Age,s.section as section,s.subjects as subjects FROM students s JOIN c IN s.subjects WHERE c.result = \"pass\"").ToList();
List<Student> students = new List<Student>();
foreach(var std in result)
{
students.Add((Student)std);
}
上面这样的代码是我得到的,但即使我给出pa或pas或pass或p或ass,我也应该得到一些我需要的SQL中类似的功能
有什么解决办法吗??
我需要SQL中类似的功能来从documentDB检索数据更新:截至,documentDB添加了一组字符串函数,包括STARTSWITH、ENDSWITH和CONTAINS。请注意,这些函数中的大多数不会在索引上运行,而是会强制扫描
尚未在DocumentDB中实现SQL之类的通配符“%”
请在上发表您的意见并投票支持此功能。最近几个月推出了一些新功能。对于您的特殊情况,我认为您可以使用:
WHERE STARTSWITH(c.result, "p")
您的努力在哪里?来自client.CreateDocumentQuerydc.SelfLink中的f,其中f.subjects[0]。结果==通过选择f;var result=client.CreateDocumentQuerydc.SelfLink,选择s.id作为id,s.Name作为Name,s.Age作为Age,s.section作为section,s.subjects作为来自学生的科目s在s.subjects中加入c,其中c.result=\pass\.ToList;学生名单=新名单;结果{students.AddStudentstd;}中的foreachvar std类似于上面的内容是我得到的代码,但即使我给出了pa或pass或pass或p或ass,或者我也应该得到一些我需要的类似于SQL的功能。不要将其添加为注释,没有人会像这样阅读它。在问题中添加它。谢谢@mybirthname我是新来的我可以使用contains吗??请共享有关此更新的链接选择food.id,food.description,food.tags,food.foodGroup FROM food where starts with food.id,03;它不起作用。有什么想法吗?