我目前有一个 Linq to Sql 实现,它需要很长时间来进行插入,所以我试图使用紧凑的插入语句来加速它,但仍然使用 linq to sql 的执行命令。
我有一个string[]
我试图object[] parameters
像这样传递给 ExecuteCommand 的参数。
string sqlStart = "INSERT INTO BusinessContacts (Guid,BusinessId,Name,Email,Address,City,State,PostalCode,Phone,URL) VALUES ";
string sqlParams = "(NewId(),1,{{{0}}},{{{1}}},{{{2}}},{{{3}}},{{{4}}},{{{5}}},{{{6}}},{{{7}}}),";
string[] values = new string[8000];
int curParam = -1;
sbSqlValues.Append(sqlStart);
foreach (var email in emails) {
sbSqlValues.AppendFormat(sqlParams, ++curParam, ++curParam, ++curParam, ++curParam, ++curParam, ++curParam, ++curParam, ++curParam);
curParam -= 8;
values[++curParam] = email.Name;
values[++curParam] = (email.Email);
values[++curParam] = (email.Address);
values[++curParam] = (email.City);
values[++curParam] = (email.State);
values[++curParam] = (email.PostalCode);
values[++curParam] = (email.Phone);
values[++curParam] = (email.URL);
}
sbSqlValues.Remove(sbSqlValues.Length - 1, 1);
inserted += ExecuteCommand(sbSqlValues.ToString(), values);
但即使我传递了一个字符串数组,我仍然收到异常:A query parameter cannot be of type 'System.Object'.