新手问题
zjzhz 2003-01-26 09:14:27 请教大侠,解释一下下面代码中"select count(*) as co from Score"的意思
//计算总共有多少条记录
public int CalculateRecord()
{
int intCount;
string strCount = "select count(*) as co from Score";
OleDbCommand MyComm = new OleDbCommand(strCount,MyConn);
OleDbDataReader dr = MyComm.ExecuteReader();
if(dr.Read())
{
intCount = Int32.Parse(dr["co"].ToString());
}
else
{
intCount = 0;
}
dr.Close();
return intCount;
}