从C＃运行MySQL命令时忽略@符号

Question

I have the following MySQL command that populates a table with the last 6 matches played by soccer teams:

insert into lastxgames
select team, matchdate, hometeam, awayteam, fthg, ftag
from (
  select
    team, soccerdata.matchdate, hometeam, awayteam, fthg, ftag,
    @teamCounter:=IF(@prevHome=team,@teamCounter+1,1) teamCounter,
    @prevHome:=team
  from soccerdata
    join (
      select distinct matchdate, hometeam team
      from soccerdata
      union 
      select distinct matchdate, awayteam
      from soccerdata
    ) allgames on soccerdata.matchdate = allgames.matchdate
      and (soccerdata.hometeam = allgames.team or soccerdata.awayteam = allgames.team)
    join (select @teamCounter:=0) t
  order by team, soccerdata.matchdate desc
  ) t 
where teamCounter <= 6
order by team, matchdate desc;

I want to run this from within a C# program, but when I do the query fails as the @ symbol is taken as a query parameter, rather than being treated in the way that MySQL intended (a MySQL variable?).

Within my C# program I am just declaring a string to hold the query and adding it to a MySqlCommand:

string insertCommand = @"insert into lastxgames...";
using (MySqlCommand cmdInsert = new MySqlCommand(insertCommand, dcConnection))
{
  cmdInsert.ExecuteNonQuery();
}

Is there a way to get C# to ignore the @ symbol so that @teamCounter and @prevHome are not treated as query parameters?

Answer 1

正确的做法是使它成为数据库中的存储过程，并让您的C＃运行该存储过程。