信纸的折法:SELECT SUM(工资) FROM 职工

SELECT SUM(工资) FROM 职工 select sum(*) from...where..... select distinct id ,num=sum(cast((num) as int) from sy order by id desc 关asp.net select sum(*) select from where like select *from 部系表 select count(*) from 学生 select * from table1 where id in (select id from table2)， select * from v$bgprocess 是什么意思 select * from (select a.*,b.kczwmc kcmc from (select kcdm,max(McjN) Mcj,Max(kcxz) kcxz from (select