Simple MySql Select Queries are slow in C# but fast in MySql Workbench -

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i don't have experience mysql, 1 of clients have asked hook thier mysql database. designed simplest query ever, basic select statement follows:

select dateandtime,        conveyor_belt_weight_theoretical_max_value conveyor_belt dateandtime >= '2016-08-19 01:51:40'   , dateandtime < '2016-08-19opcsystems_to_air_airopcsystems_to_air_system_air_system 14:45:36' order dateandtime limit 1000

in visual studio code, connect mysql follows:

datatable _dt = new datatable();  using (var cmd = this.mysqlconn.createcommand()) {     if (this.mysqlconn.state != connectionstate.open) this.mysqlconn.open();     cmd.commandtext = sqlquery;     using (mysqldatareader results = cmd.executereader())     {         if (!results.read()) return null;         _dt.columns.clear();         (int = 0; < results.fieldcount; i++)         {             _dt.columns.add(results.getname(i));         }         _dt.load(results);     } } return _dt;

i feed exact same query procedure.

in mysql workbench, takes 1 second.

however, in c# application. takes 6 seconds.


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