STATISTICS IO 比較

根據前兩個練習中範例查詢的 STATISTICS IO 輸出，你會得到什麼結論？

範例 1

Table 'Customers'. Scan count 1, logical reads 2, physical reads 0,....
Table 'Orders'. Scan count 2, logical reads 32, physical reads 0,...

範例 2

Table 'Customers'. Scan count 1, logical reads 2, physical reads 0,....
Table 'Orders'. Scan count 2, logical reads 16, physical reads 0,...