IP屬地:北京
Row level data to Column level using CASE statement SELECT TRUNC(SALES_D...
1. 100顆松果和松鼠的家距離100米,松鼠每次最多只能搬運(yùn)50個(gè)松果,松鼠比較貪吃,每走2米要吃掉一顆松果,請問松鼠最多能搬回家多少松果? ...
Analytical Function SELECT SALES_DATE, ORDER_ID, PRODUCT_ID, SALES_AMOUN...