select count和select count的区别

select count (1) select count(*) from table1 select count(*) from table2 sele select count(*) from 怎么使用 select count(1) from emp count,count和count的区别 SELECT sum(1) FROM table;和SELECT count(1) FROM table; select count(c) from (select b from TUserBankLogSum b group select telnum,count(0),count(distinct othertelnum) from nmk. count(*)和count(1)的区别是什么? choice和select的区别 select 和elect的区别 select Insert into和Insert into select的区别