求解正确的sql语句解决方案

求解正确的sql语句

SELECT id,convert(varchar(13),date,120),[type],count(*) FROM 
(select * from barcode_2d WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select * from barcode_2d_n WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select * from barcode_2d_temp WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select * from barcode_2d_sep_temp WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select id,username,packageno,lotno,description,[type],barcode,date from barcode_2d_qr_temp WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select id,username,packageno,lotno,description,[type],barcode,date from barcode_2d_qr WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select id,username,packageno,lotno,description,[type],barcode,date from barcode_2d_sep WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00')a 
GROUP BY convert(varchar(13),date,120) ORDER BY convert(varchar(13),date,120) ASC

结果报错：Column 'a.ID' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.

求正确结果及原因，谢谢！
[解决办法]
SELECT?id,convert(varchar(13),date,120),[type],count(*)?FROM?
(select?*?from?barcode_2d?WHERE?date?>=?'2013-07-08?08:00:00'?AND?date?<?'2013-07-09?08:00:00'?
union?all?
select?*?from?barcode_2d_n?WHERE?date?>=?'2013-07-08?08:00:00'?AND?date?<?'2013-07-09?08:00:00'?
union?all?
select?*?from?barcode_2d_temp?WHERE?date?>=?'2013-07-08?08:00:00'?AND?date?<?'2013-07-09?08:00:00'?
union?all?
select?*?from?barcode_2d_sep_temp?WHERE?date?>=?'2013-07-08?08:00:00'?AND?date?<?'2013-07-09?08:00:00'?
union?all?
select?id,username,packageno,lotno,description,[type],barcode,date?from?barcode_2d_qr_temp?WHERE?date?>=?'2013-07-08?08:00:00'?AND?date?<?'2013-07-09?08:00:00'?
union?all?
select?id,username,packageno,lotno,description,[type],barcode,date?from?barcode_2d_qr?WHERE?date?>=?'2013-07-08?08:00:00'?AND?date?<?'2013-07-09?08:00:00'?
union?all?
select?id,username,packageno,lotno,description,[type],barcode,date?from?barcode_2d_sep?WHERE?date?>=?'2013-07-08?08:00:00'?AND?date?<?'2013-07-09?08:00:00')a?
GROUP?BY?id,convert(varchar(13),date,120)?ORDER?BY?convert(varchar(13),date,120)?ASC
[解决办法]
在group by中加了id列，改成这样试试：

SELECT id,convert(varchar(13),date,120),[type],count(*) FROM 
(select * from barcode_2d WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select * from barcode_2d_n WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select * from barcode_2d_temp WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select * from barcode_2d_sep_temp WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select id,username,packageno,lotno,description,[type],barcode,date from barcode_2d_qr_temp WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select id,username,packageno,lotno,description,[type],barcode,date from barcode_2d_qr WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00' 
union all 
select id,username,packageno,lotno,description,[type],barcode,date from barcode_2d_sep WHERE date >= '2013-07-08 08:00:00' AND date < '2013-07-09 08:00:00')a 
GROUP BY id,convert(varchar(13),date,120) ORDER BY convert(varchar(13),date,120) ASC 
 

[解决办法]
从你的报错信息来看，应该是select中的id列，没有在group by中出现，也没有使用聚合函数，所以才会报错的哈

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