SQL中如何求和?答:select sum(A),sum(B),sum(C),sum(D),sum(E),sum(F),sum(G) from 表名 横向汇总的SQL语句是: select A,B,C,D,E,F,G,A+B+C+D+E+F+G from 表名 求所有数据总和的SQL语句是:select sum(A)+sum(B)+sum(C)+sum(D)+sum(E)+sum(F)+sum(G) from 表名 ...
sql语句求和答:selectsum(A),sum(B),sum(C),sum(D),sum(E),sum(F),sum(G)from表名 横向汇总的SQL语句是:selectA,B,C,D,E,F,G,A+B+C+D+E+F+Gfrom表名 求所有数据总和的SQL语句是:selectsum(A)+sum(B)+sum(C)+sum(D)+sum(E)+sum(F)+sum(G)from表名 结构化查询语言是高级的非过程化...
SQL语句 怎么计算合计答:从表table1创建视图view1,如下,create view view1 as select 客户,费用1,费用2,费用3,费用4 ,合计 from table1 union select 客户='合计',费用1=sum(费用1),费用2=sum(费用2),费用3=sum(费用3),费用4=sum(费用4),合计=sum(合计) from table1 ...
SQL数据库里的求和语句怎么写?答:假如你的数据列名为:a,b,c,d,e,f,g。那么你横向SQLselecta,b,c,d,e,f,g,a+b+c+d+e+f+g from表名。那么你纵向汇总的SQL语句是:selesum(a),sum(b),sum(c),sum(d),sum(e),sum(f),sum(g) from 表名。求所有数据总和的selectsum(a)+sum(b)+sum(c)+sum(d)+sum(e)+sum...