SELECT MAX(account) AS account FROM shop 和 SELECT MAX(account) FROM shop 的区别?shop 是表名,article 是表中的一个字段名.

select max(account_id ) from(select top 5 account_id from account)子查询没起作用为什么? SELECT MAX(account) AS account FROM shop 和 SELECT MAX(account) FROM shop 的区别?shop 是表名,article 是表中的一个字段名. select-account是什么意思 joint account 和 select account分别是什么意思?debit String sql = select * from tb_consumer where account=' + account+ '; + account+ oracle 子查询:select *,(select account from t_ps_member m where m.mid = po.mid) account from t_ps sql=select * from x where Min>2 and max SELECT account account account account account mysql_query(select Count(1) from account 怎么判断设置 输出数值?我要输出下面这一段 让収条件 不成立$check_query = mysql_query(select Count(1) from account where username='$username' and sha_pass_hash ='$password';); if 这 max. max. sql语句：去掉最大值,去掉最小值,算平均值SELECT AVG(Scores.Score)FROM ScoresWHERE ( ( (Scores.[ID]) = @id)AND (Score < (SELECT MAX(Score) From Scores WHERE Scores.[ID] = @id) )AND (Score > (SELECT MIN(Score) From Scores WHERE Scores.[I 列名acct_month ,acct_year,表名acct_vouch查询最大、小月,最小月要对应最小年select min(acct_month) as start_month from acct_vouch where acct_year=(select min(acct_year) from acct_vouch) select max(acct_month) as cur_month from acct_