getATable function
        
dynamic
getATable(
    
    
- dynamic tablename,
- dynamic companyid,
- dynamic tableid
Implementation
getATable(tablename, companyid, tableid) {
  int iCompanyid = 1;
  if (!isNull(companyid)) {
    iCompanyid = int.parse(companyid);
  }
  dynamic result = getATableSql(
      tablename,
      companyid,
      tableid,
      'SELECT  * FROM $tablename where $gCompanyid=? and $gTableID=?',
      [iCompanyid, tableid]);
  return result;
}