mysql：截斷一個字段並在另一個表中彙總數據

Question

我有一個表格，其中包含日期時間形式的日期。

mysql> select * from topsmsspammers_hour limit 1; 
+---------------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
| date    | spam | suspect | clean | spammer  | spam_campaign_id       | messageType | policy | isSenderPolicy | 
+---------------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
| 2013-06-11 23:00:00 | 1 |  0 |  0 | +12073708065 | NotSet|Message35392HerbisReallyWorkingRealy |   4 |  1 |    1 | 
+---------------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
1 row in set (0.00 sec) 

mysql> 

我想使用本表數據來填充完全相同的列名，但與截斷日期合計一天日期表（和計數改變以反映變化） 我第一次確定的選擇查詢這將截斷我需要的數據：

mysql> select SUBSTRING_INDEX(date, ' ', 1) as date, sum(spam) as spam, sum(suspect) as suspect, sum(clean) as clean, spammer, spam_campaign_id, messageType, policy, isSenderPolicy from topsmsspammers_hour group by date, spammer, spam_campaign_id, messageType, policy, isSenderPolicy limit 1; 
+------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
| date  | spam | suspect | clean | spammer  | spam_campaign_id       | messageType | policy | isSenderPolicy | 
+------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
| 2013-06-11 | 1 |  0 |  0 | +12073708065 | NotSet|Message35392HerbisReallyWorkingRealy |   4 |  1 |    1 | 
+------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
1 row in set, 1 warning (1.66 sec) 

mysql> 

我又試圖使用選擇查詢來填充新表，但截斷日期尚未插入。而是原來的日期插入：

mysql> insert into topsmsspammers_day (date, spam, suspect, clean, spammer, spam_campaign_id, messageType, policy, isSenderPolicy) select SUBSTRING_INDEX(date, ' ', 1) as date, sum(spam) as spam, sum(suspect) as suspect, sum(clean) as clean, spammer, spam_campaign_id, messageType, policy, isSenderPolicy from topsmsspammers_hour group by date, spammer, spam_campaign_id, messageType, policy, isSenderPolicy limit 1; 
Query OK, 1 row affected, 1 warning (1.68 sec) 
Records: 1 Duplicates: 0 Warnings: 1 

mysql> select * from topsmsspammers_day limit 1;                +---------------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
| date    | spam | suspect | clean | spammer  | spam_campaign_id       | messageType | policy | isSenderPolicy | 
+---------------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
| 2013-06-11 00:00:00 | 1 |  0 |  0 | +12073708065 | NotSet|Message35392HerbisReallyWorkingRealy |   4 |  1 |    1 | 
+---------------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
1 row in set (0.00 sec) 

mysql> 

我試着再更改數據有用於填充新表不同的名字，但是這仍然導致了完整的日期越來越插入到表：

mysql> insert into topsmsspammers_day (date, spam, suspect, clean, spammer, spam_campaign_id, messageType, policy, isSenderPolicy) select SUBSTRING_INDEX(date, ' ', 1) as dayDate, sum(spam) as spam, sum(suspect) as suspect, sum(clean) as clean, spammer, spam_campaign_id, messageType, policy, isSenderPolicy from topsmsspammers_hour group by dayDate, spammer, spam_campaign_id, messageType, policy, isSenderPolicy limit 1; 
Query OK, 1 row affected (1.75 sec) 
Records: 1 Duplicates: 0 Warnings: 0 

mysql> select * from topsmsspammers_day limit 1; 
+---------------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
| date    | spam | suspect | clean | spammer  | spam_campaign_id       | messageType | policy | isSenderPolicy | 
+---------------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
| 2013-06-11 00:00:00 | 1 |  0 |  0 | +12073708065 | NotSet|Message35392HerbisReallyWorkingRealy |   4 |  1 |    1 | 
+---------------------+------+---------+-------+--------------+---------------------------------------------+-------------+--------+----------------+ 
1 row in set (0.00 sec) 

mysql> 

我甚至嘗試在插入更改名稱但跌倒了就不是在新表中的字段名稱：

mysql> insert into topsmsspammers_day (dayDate, spam, suspect, clean, spammer, spam_campaign_id, messageType, policy, isSenderPolicy) select SUBSTRING_INDEX(date, ' ', 1) as dayDate, sum(spam) as spam, sum(suspect) as suspect, sum(clean) as clean, spammer, spam_campaign_id, messageType, policy, isSenderPolicy from topsmsspammers_hour group by dayDate, spammer, spam_campaign_id, messageType, policy, isSenderPolicy limit 1; 
ERROR 1054 (42S22): Unknown column 'dayDate' in 'field list' 
mysql> 

我缺少什麼？我怎樣才能將截斷的聚合數據插入到新表中？

一個

它看起來像2013年6月11日23:00:00被改爲2013年6月11日00:00:00所以也許它與數據類型 一個

Answer 1

檢查問題你列的數據類型，我猜你正在使用datetime。將其更改爲日期數據類型