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有人可以帮我吗？我通常不在 C# 中工作，所以我很抱歉。我有以下有效的查询，但需要将 store.Zip 查找更改为 aLIKE而不是=. 当我尝试在编译后更改=toLIKE并添加，但不运行。数据库是 Sql Server 2008：%{0}

public List<Store> DoesStoreExist(string customerNumber, string zipCode) {
    StringBuilder sb = new StringBuilder();
    sb.Append("SELECT id, Company, CustomerNumber, Name, Address, City, State, Zip, Phone, Latitude, Longitude, NumOfReferrals, IsNashville, PredsPromotionParticipant ");
    sb.Append("FROM dbo.Stores store ");
    sb.AppendFormat("WHERE store.CustomerNumber='{0}' ", customerNumber);
    sb.AppendFormat("AND store.Zip ='{0}' ", zipCode);
    sb.AppendFormat("AND store.Locator=1");

    IQuery query = NHibernateSession.CreateSQLQuery(sb.ToString());
    IList results = query.List();
    List<Store> stores = new List<Store>();
    foreach (object result in results) {
        object[] result_arr = result as object[];
        if (result_arr != null) stores.Add(Store.From(result_arr));
    }
    return stores;

}

即使只是将“=”更改为“LIKE”也会导致查询不返回：

public List<Store> DoesStoreExist(string customerNumber, string zipCode) 
{        
        StringBuilder sb = new StringBuilder();
        sb.Append("SELECT id, Company, CustomerNumber, Name, Address, City, State, Zip, Phone, Latitude, Longitude, NumOfReferrals, IsNashville, PredsPromotionParticipant ");
        sb.Append("FROM dbo.Stores store ");
        sb.AppendFormat("WHERE store.CustomerNumber='{0}' ", customerNumber);
        sb.AppendFormat("AND store.Zip LIKE '{0}%' ", zipCode);
        sb.AppendFormat("AND store.Locator=1");

    IQuery query = NHibernateSession.CreateSQLQuery(sb.ToString());
    IList results = query.List();
    List<Store> stores = new List<Store>();
    foreach (object result in results) {
        object[] result_arr = result as object[];
        if (result_arr != null) stores.Add(Store.From(result_arr));
    }
    return stores;
}

当我直接对数据库运行以下命令时，它可以工作：

SELECT * FROM [StoreDB].[dbo].[Stores]WHERE Zip LIKE '33815%'

谢谢！

4

3 回答 3

0

If it times out, then you need to increase the command timeout. Assuming your entity object is called 'db', do this before executing the query in your c# code.

db.CommandTimeout = 300;

The timeout is in seconds.

于 2013-07-08T13:36:51.770 回答
0

尝试这个

    public List<Store> DoesStoreExist(string customerNumber, string zipCode)
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("SELECT id, Company, CustomerNumber, Name, Address, City, State, Zip, Phone, Latitude, Longitude, NumOfReferrals, IsNashville, PredsPromotionParticipant ");
        sb.Append("FROM dbo.Stores store ");
        sb.AppendFormat("WHERE store.CustomerNumber ='{0}' ", customerNumber);
        sb.AppendFormat("AND store.Zip like '{0}%' ", zipCode);
        sb.AppendFormat("AND store.Locator=1");
    }
于 2013-07-08T13:28:54.707 回答
0

这应该有效： sb.AppendFormat("AND store.Zip like '{0}%' ", zipCode);

于 2013-07-08T13:30:18.280 回答