Question

我不知道为什么在存储过程中出现此错误。在此示例中，@SearchQuery的值将为email：tony.stark@starkindustries.com

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER PROC [dbo].[cust_a91150_sp_LiveSearch]
    @PersonID INT,
    @SearchMode VARCHAR(MAX),
    @SearchQuery VARCHAR(MAX),
    @OrganizationID INT
AS
IF @SearchMode =  'People'
BEGIN
SELECT DISTINCT TOP 7
    p.[guid] [id],
    CASE
        WHEN p.[nick_name]+' '+p.[last_name] LIKE @SearchQuery+'%' THEN p.[nick_name]+' '+p.[last_name]
        WHEN p.[first_name]+' '+p.[last_name] LIKE @SearchQuery+'%' THEN p.[first_name]+' '+p.[last_name]
    END AS [name],
    p.[last_name],
    p.[nick_name],
    'Person' [type]
FROM core_person p
LEFT JOIN core_person_email e on e.person_id = p.person_id
WHERE (p.[organization_id] = @OrganizationID)
    AND (p.[first_name] <> '' AND p.[nick_name] <> '')
    AND (p.[record_status] = 0)
    AND (
       (p.[first_name]+' '+p.[last_name] LIKE @SearchQuery+'%' OR p.[nick_name]+' '+p.[last_name] LIKE @SearchQuery+'%' AND @SearchQuery NOT LIKE 'email:%')
    -- Problem here on this next line
    OR (e.[email] = LTRIM(RIGHT(@SearchQuery, LEN(@SearchQuery) - 6)) AND @SearchQuery LIKE 'email:%')
    )
ORDER BY p.[last_name] ASC,
    p.[nick_name] ASC
END
/** End People search mode **/
....

我只是在IF / ELSE之外尝试了查询的主要部分，它工作正常，没有问题。但是从存储过程运行时，它立即崩溃。请帮助：（

更新：这是调用该存储过程的代码。这是一个Web服务调用。对于此示例：

用户：1 模式：“人” 查询：“ email：tony.stark@starkindustries.com” orgId：1

[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string GetResults(string mode, string query)
{
    int user = ArenaContext.Current.Person.PersonID;

    JavaScriptSerializer serializer = new JavaScriptSerializer();

    -- SPROC call on below line
    DataTable DataSource = new LiveSearchServiceModel().LiveSearch_DT(user, mode, query, Arena.Core.ArenaContext.Current.Organization.OrganizationID);
    List<Dictionary<string, object>> rows = new List<Dictionary<string, object>>();
    Dictionary<string, object> row;

    foreach (DataRow dr in DataSource.Rows)
    {
        row = new Dictionary<string, object>();
        foreach (DataColumn col in DataSource.Columns)
        {
            row.Add(col.ColumnName, dr[col]);
        }
        rows.Add(row);
    }

    return serializer.Serialize(rows);
}

以及数据库类/方法：

public class LiveSearchServiceModel : SqlData
{
    public LiveSearchServiceModel() { }

    public DataTable LiveSearch_DT(int user, string searchMode, string searchQuery, int orgId)
    {
        ArrayList lst = new ArrayList();

        lst.Add(new SqlParameter("@PersonID", user));
        lst.Add(new SqlParameter("@SearchMode", searchMode));
        lst.Add(new SqlParameter("@SearchQuery", searchQuery));
        lst.Add(new SqlParameter("@OrganizationID", orgId));

        try
        {
            return this.ExecuteDataTable("cust_a91150_sp_LiveSearch", lst);
        }
        catch (SqlException ex)
        {
            throw ex;
        }
        finally
        {
            lst = null;
        }
    }
}

Answer 1

我猜是问题所在：

RIGHT(@SearchQuery, LEN(@SearchQuery) - 6)

当您传递短字符串时，您将获得：

RIGHT(@SearchQuery, -1)
-- Invalid length parameter passed to the right function.

我会检查LEN(@SearchQuery) - 6 >= 0

RIGHT(@SearchQuery, CASE WHEN LEN(@SearchQuery) - 6>=0 THEN LEN(@SearchQuery) - 6
                    ELSE LEN(@SearchQuery) END)

SQL Server：无效的长度参数传递给RIGHT函数

1 个答案: