Get total count of records from static query in x++

 Get total count of records from static query in x++:

Query        query          = new Query();

//query = contract.parmOurCustomQuery();

QueryRun  queryRun   = new QueryRun(q);

int               totals          = 0;

/// get total record count with single datasource

totals           = SysQuery::countTotal(queryRun);

/// get total records count with multiple datasources

totals           = SysQuery::countLoops();

// get total records count with multiple datasources and adding group by or order by in query with multiple data sources

totals           = QueryRun::getQueryRowCount(query,maxInt());