【简答题】查找客户姓名及其所订购的商品编号和数量。正确的SELECT语句是( )。A. SELECT KHB.客户姓名, SPDGB.商品编号, SPDGB.数量 FROM KHB WHERE KHB.客户编号=SPDGB.客户编号 B. SELECT KHB.客户姓名, SPDGB.商品编号, SPDGB.数量 FROM SPDGB WHERE KHB.客户编号=SPDGB.客户编号 C. SELEC...
【判断题】Besides providing assistance, protection and advocacy for registered Palestine refugees in Lebanon, UNRWA was also their largest employer in 2006.