SQL的GROUP BY错误SELECT SUM(ADMIN_ENTERED)FROM STATEGROUP BY YEAR_ENTEREDHAVING COUNT(YEAR_ENYERED)=MAX(COUNT(YEAR_ENTERED))系统提示：：ERROR at line 4:ORA-00935:group function is nested too deeply 这是表格：CREATE TABLE STATE(STATE_NAM

SQL的执行顺序,如：（ Select,From,Where Group By , Order By）如何的顺序 SQL的GROUP BY错误SELECT SUM(ADMIN_ENTERED)FROM STATEGROUP BY YEAR_ENTEREDHAVING COUNT(YEAR_ENYERED)=MAX(COUNT(YEAR_ENTERED))系统提示：：ERROR at line 4:ORA-00935:group function is nested too deeply 这是表格：CREATE TABLE STATE(STATE_NAM 这个SELECT是什么意思?SELECT code,MAX(timetag) from goods GROUP BY code这个SQL是什么意思,出来的分组结果是按CODE过滤并只保留最大timetag的记录吗? 数据库的group by有什么意义呢?(sql server) SQL语句select * from 表名 group by 列名--不是 GROUP BY 表达式RTselect * from 表名 group by 列名----- 报错 ORA-00979:不是 GROUP BY 表达式数据库:oracle10g* 换成 列名也不行 SQL语句中的 Distinct 和 Group by 有什么不同,用那个好?select Distinct 品名,单位 from [表]和select 品名,单位 from [表]Group by 品名,单位查询的结果是一样的,都是把相同的记录合并为一条,这两个有什么 group by order by今天发现一个很有意思的问题,对于一个sql语句,其后的group by 1 order by 1 比如：select to_char(created_date,'%Y%m'),count(*)from aaaagroup by 1 order by 1 其中的created_date为日期格式,该语句想按月 select-sql 语句中,筛选用（?）子句,分组用group by 子句,排序用order by 子句上述括号中筛选用什么子句? sql函数,select count(A.abc) as sum from A left join B on A.id=B.id where A.abc='1' group by A.abc结果是 sum 234怎么求count(A.abc) as sum 的总数. 在SELECT-SQL语句的ORDER BY子句中,DESC表示按什么输出 sql中order by和group by的区别RT,请明确指出 在SQL语句中,select,where,group by,having,order by,这几个关键字程序执行顺序是怎样的?比如这个查询语句：select T1.USERNAME AS '员工姓名',T2.DEPTNAME as '部门名称',sum(T3.BILLMNY) AS '出账收入',sum(T4.LOSTMNY) AS [SQL]GROUP 关于SQL语句里面的A.XX,和B.select B.kecheng,B.score,B.xuehaofrom(select kecheng ,max(score) AS score from jiaScore group by kecheng) A,jiaScore Bwhere A.kecheng = B.kechengand A.score = B.score例如我这段数据库语句,A.kecheng和B.keche 请问sql=select * from 招聘信息 order by id 这样的SQL select语句怎么写?怎么显示数据 distinct,order by,group by,having?这是我的数据：id addr temperature voltage others date_time 1335 0001 75.2 2.6 024 2010-11-13 19:45:151336 0002 75.3 2.6 024 2010-11-13 19:45:16 1337 0002 7 数据库…SQL server ,where ,group by .order.by 子句的使用和联合主键的条件?怎样将多表联合? SQL中group by语句有何作用?group by 语句有什么作用呢?我怎么感觉加不加效果是一样的呀!