我从C#调用SQL Server存储过程。只要我将SqlCommand
CommandTimeout
设置得足够高,它就会起作用 - 返回数据 - 但它比绝对零度的糖蜜慢。
我如何调用可以加快进程的存储过程?我是这样做的:
DataTable dtFillRateResults = SqlDBHelper.ExecuteSQLReturnDataTable(FILL_RATE_BY_DISTRIBUTOR_BY_CUSTOMER_STORED_PROC, CommandType.StoredProcedure,
new SqlParameter()
{
ParameterName = "@Unit",
SqlDbType = SqlDbType.VarChar,
Value = _unit
},
new SqlParameter()
{
ParameterName = "@Member",
SqlDbType = SqlDbType.VarChar,
Value = _memberId
},
new SqlParameter()
{
ParameterName = "@BegDate",
SqlDbType = SqlDbType.DateTime,
Value = Convert.ToDateTime(_dateBegin)
},
new SqlParameter()
{
ParameterName = "@EndDate",
SqlDbType = SqlDbType.DateTime,
Value = Convert.ToDateTime(_dateEnd)
}
);
以上调用SqlDBHelper.ExecuteSQLReturnDataTable()
,即:
public static DataTable ExecuteSQLReturnDataTable(string sql, CommandType cmdType, params SqlParameter[] parameters)
{
using (DataSet ds = new DataSet())
using (SqlConnection connStr = new SqlConnection(FillRateRptConstsAndUtils.CPSConnStr))
using (SqlCommand cmd = new SqlCommand(sql, connStr))
{
cmd.CommandType = cmdType;
cmd.CommandTimeout = EXTENDED_TIMEOUT;
foreach (var item in parameters)
{
cmd.Parameters.Add(item);
}
try
{
cmd.Connection.Open();
new SqlDataAdapter(cmd).Fill(ds);
}
catch (SqlException sqlex)
{
for (int i = 0; i < sqlex.Errors.Count; i++)
{
var sqlexDetail = String.Format("From ExecuteSQLReturnDataTable(), SQL Exception #{0}{1}Source: {2}{1}Number: {3}{1}State: {4}{1}Class: {5}{1}Server: {6}{1}Message: {7}{1}Procedure: {8}{1}LineNumber: {9}",
i + 1, // Some users would get the fantods if they saw #0
Environment.NewLine,
sqlex.Errors[i].Source,
sqlex.Errors[i].Number,
sqlex.Errors[i].State,
sqlex.Errors[i].Class,
sqlex.Errors[i].Server,
sqlex.Errors[i].Message,
sqlex.Errors[i].Procedure,
sqlex.Errors[i].LineNumber);
MessageBox.Show(sqlexDetail);
}
}
catch (Exception ex)
{
String exDetail = String.Format(FillRateRptConstsAndUtils.ExceptionFormatString, ex.Message, Environment.NewLine, ex.Source, ex.StackTrace);
MessageBox.Show(exDetail);
}
return ds.Tables[0];
}
}