ERROR [42000] [MySQL][ODBC 3.51 Driver]memory exhausted at 5332 line

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foreach (DataRow row in dssetparameter.Tables[0].Rows)
  {
 selectquery += " select '" + row["itemID"] +"'; as unit_param_id ,'" + row["paramvalue"] + '" as param_value,'" + row["date_logged"] +"' as date_logged ,'" + row["date_logged1"] + "' as OPCdate_logged,'" + row["Quality"] + "' as param_quality Union ALL" + Environment.NewLine;
  }
  if (selectquery != "")
 {
 selectquery = selectquery.Remove(selectquery.LastIndexOf("Union"));
 insertquery += " insert into " + tablename + "  " + Environment.NewLine;
  insertquery += " (unit_param_id,param_value,date_logged,OPCdate_logged,param_quality)" + Environment.NewLine;
  insertquery += " " + selectquery + " ";
                                if (con2.State == ConnectionState.Closed)
                                    con2.Open();
                                cmd2 = new OdbcCommand(insertquery, con2);
                                    cmd2.CommandTimeout = 500;
                                    cmd2.ExecuteNonQuery();


                                if (con2.State == ConnectionState.Open)
                                    con2.Close();
                            }

i have write this query inserting the 7000 row at every 1000 millisecond using threading .But when i will be excute this query it will be thrown exception as

"

C++

ERROR [42000] [MySQL][ODBC 3.51 Driver][mysqld-6.0.11-alpha-community]memory exhausted near ''5332' as unit_param_id ,'' as param_value,'' as date_logged ,'' as OPCdate_logg' at line 5334

"
please help me
thanks in advance..........

Posted 22-Jun-11 19:50pm

vrushali katkade

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Kim Togo · Answer 1 · 2011-06-22T20:46:00

Solution 1

First switch to MySql Connector/Net[^] driver. The MySql Odbc v 3.51 is a very old driver.

Then rethink the code about the INSERT ... SELECT statement.

Posted 22-Jun-11 20:46pm

Kim Togo

Comments

vrushali katkade 23-Jun-11 3:38am

the same exception using this MYSQL connector 6.3.6

Kim Togo 23-Jun-11 12:00pm

I think you are generation an all to big sized/length SQL statement. Rethink the INSERT ... SELECT logic.

Espen Harlinn 25-Jun-11 13:44pm

Good effort, my 5

Kim Togo 27-Jun-11 3:34am

Thanks Espen