VTS question regarding lrvtc_query_row(int rowIndex)

I will be using  below code for reading (not consuming) data from a VTS table. My question is; whether this will work for around 50 concurrent users or do I need to make any updates on this? In  my scenario, I require to use unique data. My doubt in this code is;whether I will get duplicated data.

	int colSize;
	int iRow;
	// Obtain the count of rows populated for column named "Col1":
	colSize = lrvtc_column_size("Col1");
	lr_message("*** Col1 size = %d",colSize); 

	for( iRow = 1; iRow <= colSize; iRow ++ ) {
		// Retrieve, for the physical row index given, all columns:
		rc = lrvtc_query_row( iRow );
		lr_message("Row %d Col1=%s", iRow, lr_eval_string({Col1}));
	}