Adds a specified number of empty rows to a query.
query.addRow( numberOrData=any )
Returns: Query
Number of rows to add to the query or a struct/array containing the data tp populate the row.
Examples:
queryAddRow(qry, 3);
queryAddRow(qry, ["Susi", 20] );
queryAddRow(qry, {name: "Susi", age: 20} );
Alias: number, data