select count(*) from v$process a,v$session b where a.addr =

select count(*) from v$process a,v$session b where a.addr = select A,B,C,D=(select count(*) from 表 where c=a.a and b=a.b select count(*) as total from ddcm_news where key=a SQL语句理解 select * from B where (select count(1) as num from A select * into b from a where 11 select ** from A where A.id in (select id from B where ****) select distinct A.* from A,B where A.id = B.g_id and A.fwzid sql函数,select count(A.abc) as sum from A left join B on A.id= SQL >select count(*) from Teacher where teacherCode=? and te select a,b from 表名 group by a,b order by count(*) desc select A.a,b,c,d from A,B where A.a=B.a and f='1' String sql = "select * from tb_consumer where account='" + a