填空題:1.452.類3.關(guān)系4.靜態(tài)5.物理獨立性6.數(shù)值型(N型)7.局部變量(或局域變量)8.Order By9.邏輯型(L型)10.實體11.UNION12.數(shù)據(jù)查詢13.SUM(工資)14.INSERT INTO15.RIGHTCLICK