统计数据的SQL例子
/* Formatted on 2011/06/08 17:58 (Formatter Plus v4.8.8) */SELECT (SELECT 1 + 1 FROM DUAL) + (SELECT 2 + 2 FROM DUAL) col1, 3 + 4 col2, 34 col3 FROM DUAL;/* result COL1 COL2 COL3---------- ---------- ---------- 6 7 341 row selected.*/
