Newbie query use help.

Hi folks,

I'm a humble non-programmer who just wants to read a float table value into
a float variable.
----------------------------------------------------------------------------
-------------
 Query query = con.query();
 query << "select kwh from basic120 order by time desc limit"; // Last value
this column.
 mysqlpp::ResUse res = query.use();
 ???
 float kwh = ???
----------------------------------------------------------------------------
-------------
I've tried using the method Fields but can't get it to compile.

Thanks,

Benjamin Liu



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