我有以下sql变量:
SELECT * FROM x WHERE x.Description CONTAINS(@p1)
我已经使用名称@ p1和有效字符串(即“ foo”)配置了一个SQL参数,并使用以下命令将其添加到SqlParameterCollection集合变量中:
var sqlQuery = new SqlQuerySpec(sql, collection);
然后我调用以下查询。
var query = _documentClient.CreateDocumentQuery<T>(GetDocumentCollectionUri<T>(graphRequestContext), sqlQuery, options).AsDocumentQuery();
我遇到以下错误:
消息:Microsoft.Azure.Documents.DocumentClientException:消息:{“错误”:[{“严重性”:“错误”,“位置”:{“开始”:37,“结束”:45},“代码“:” SC1001“,”消息“:”语法错误,'CONTAINS'附近的语法不正确。“}]} ActivityId:<< strong>出于隐私原因而删除,Microsoft.Azure.Documents.Common / 2.2.0.0,Windows / 10.0.17763 documentdb-netcore-sdk / 2.2.2
每个文档(https://docs.microsoft.com/en-us/azure/cosmos-db/sql-api-query-reference)似乎都在寻找字符串表达式。因此,如果确实如此,我正在寻求确认。
答案 0 :(得分:1)
似乎您使用了错误的语法CONTAINS
。请了解correct syntax。
请参考下面的代码,它对我有用。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Azure.Documents;
using Microsoft.Azure.Documents.Client;
using System;
namespace DocumentDB.TestClass
{
class CreateBySqlParam
{
private static readonly string endpointUrl = "https://***.documents.azure.com:443/";
private static readonly string authorizationKey = "***";
private static readonly string databaseId = "db";
private static readonly string collectionId = "***";
private static DocumentClient client;
public static async void QueryTest()
{
client = new DocumentClient(new Uri(endpointUrl), authorizationKey);
var uri = UriFactory.CreateDocumentCollectionUri(databaseId, collectionId);
IQueryable<Pojo> queryable = client.CreateDocumentQuery<Pojo>(
uri,
new SqlQuerySpec
{
QueryText = "SELECT c.id,c.name FROM c WHERE contains(c.name,@param)",
Parameters = new SqlParameterCollection()
{
new SqlParameter("@param", "n")
}
}
);
foreach (Pojo p in queryable)
{
Console.WriteLine("\nRead {0}", p);
}
}
}
class Pojo : Document
{
public string id { get; set; }
public string name { get; set; }
}
}
输出: