Azure cosmosdb 如何在Azure Cosmos DB SQL API中使用SQL参数进行包含查询?
我有以下sql变量:Azure cosmosdb 如何在Azure Cosmos DB SQL API中使用SQL参数进行包含查询?,azure-cosmosdb,azure-cosmosdb-sqlapi,Azure Cosmosdb,Azure Cosmosdb Sqlapi,我有以下sql变量: SELECT * FROM x WHERE x.Description CONTAINS(@p1) 我已配置了一个名为@p1的SQL参数和一个有效字符串,即foo,并使用以下命令将其添加到SqlParameterCollection集合变量中: var sqlQuery = new SqlQuerySpec(sql, collection); 然后调用以下查询 var query = _documentClient.CreateDocumentQuery<T&g
SELECT * FROM x WHERE x.Description CONTAINS(@p1)
我已配置了一个名为@p1的SQL参数和一个有效字符串,即foo,并使用以下命令将其添加到SqlParameterCollection集合变量中:
var sqlQuery = new SqlQuerySpec(sql, collection);
然后调用以下查询
var query = _documentClient.CreateDocumentQuery<T>(GetDocumentCollectionUri<T>(graphRequestContext), sqlQuery, options).AsDocumentQuery();
我得到以下错误:
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,“包含”附近的语法不正确。}]}
ActivityId:,Microsoft.Azure.Documents.Common/2.2.0.0,Windows/10.0.17763 documentdb netcore sdk/2.2.2
根据文档,它似乎在寻找字符串表达式。因此,如果事实确实如此,我希望对此进行确认。似乎您使用了错误语法的CONTAINS。请了解一下
请参考下面的代码,它为我工作
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: