我是新手在c#中使用sql,所以这可能是非常愚蠢的错误)我正在尝试计算表中所有不同的行,但是我有以下错误:
解析查询时出错。 [令牌行号= 1,令牌行偏移= 14,令牌错误= DISTINCT]
这是我的代码:
string count_query_sttring = @"SELECT COUNT(DISTINCT PO_Name) AS bla FROM OPS_List";
string connection_string = @"Data Source=|DataDirectory|\OPS_Base.sdf";
using (SqlCeConnection connection = new SqlCeConnection (connection_string))
{
SqlCeCommand command = new SqlCeCommand(count_query_sttring, connection);
connection.Open();
SqlCeDataReader reader = command.ExecuteReader(); //here is my error
try
{
我希望有人能帮助我.Thx