多行中的SQL语句抛出错误

Question

为了防御性地提出我的问题,我在发布之前使用了Google,Bing和StackOv :-).此外,我是MVC3的新手,仍然在努力解决框架的语法错综复杂问题.

我在下面的代码块中的SQL语句中有一个错误,这让我很烦恼.语法显示正确.我使用Select*From ...简化了SQL语句,它返回数据就好了.

此外,如果有更好的方法(不使用EF对象),请务必接受建议.我非常喜欢看到SQL语句的灵活性和控制 - 要么就是习惯的形式,要么习惯于它:-).

提前致谢!!

@using System.Data.SqlClient;
@using System.Configuration;

@{
    Layout = null;
}
@{
    SqlConnection cn = null;
    cn = new SqlConnection(ConfigurationManager.ConnectionStrings["sqlConn"].ToString());
    cn.Open();
   SqlCommand cmd = new SqlCommand((@"SELECT DISTINCT" +
                                    "tblSBT.sname," +
                                    "tblSBDetails.sid," + 
                                    "tblSBDetails.assignedtrack," + 
                                    "tblSBDetails.maxtrack," + 
                                    "tblSBDetails.currentvals," + 
                                    "tblSBDetails.maxvals," + 
                                    "tblSBDetails.lastupdated" +
                                    "FROM" +         
                                        "tblSBT (NOLOCK)" +
                                    "LEFT OUTER JOIN" +
                                        "tblSBDetails (NOLOCK)" +
                                    "ON" +
                                        "tblSBT.sid = tblSBDetails.sid" +                      
                                    "WHERE" +
                                    "tblSBDetails.lastupdated > DateADD(n, -5, GETDATE())"+
                                    "ORDER BY" +
                                    "tblSBT.sname" +), cn);

    var myreader = cmd.ExecuteReader();
}

Answer 1

如果您正在使用@符号,则无需像执行此操作那样连接字符串.当你加入这样的字符串时,它也不是编写那段代码的最有效方式.

SqlConnection cn = null;
cn = new SqlConnection(ConfigurationManager.ConnectionStrings["sqlConn"].ToString());
cn.Open();
SqlCommand cmd = new SqlCommand((@"SELECT DISTINCT
        tblSBT.sname,
        tblSBDetails.sid,
        tblSBT.sname,
        tblSBDetails.sid, 
        tblSBDetails.assignedtrack,
        tblSBDetails.maxtrack,
        tblSBDetails.currentvals,
        tblSBDetails.maxvals,  
        tblSBDetails.lastupdated
        FROM    tblSBT (NOLOCK)
                    LEFT OUTER JOIN tblSBDetails (NOLOCK)
                        ON .sid = tblSBDetails.sid
        WHERE   tblSBDetails.lastupdated > DateADD(n, -5, GETDATE())
        ORDER BY    tblSBT.sname"), cn);

var myreader = cmd.ExecuteReader();