有表名爲t1,並有列編號,created_at,文本,例如,如下表所示:急SQL:選擇數據之前或日期時間之後
id created text
1 Thu Jun 30 01:00:57 +0000 2016 I like this movie1
2 Thu Jun 30 02:59:57 +0000 2016 I like this movie2
3 Thu Jun 30 03:49:57 +0000 2016 I like this movie3
4 Thu Jun 30 04:59:50 +0000 2016 I like this movie4
5 Thu Jun 30 05:39:57 +0000 2016 I like this movie5
6 Thu Jun 30 06:39:57 +0000 2016 I like this movie6
7 Thu Jun 30 06:29:57 +0000 2016 I like this movie6
8 Thu Jun 30 07:09:57 +0000 2016 I like this movie7
9 Thu Jun 30 07:39:57 +0000 2016 I like this movie8
10 Thu Jun 30 08:39:57 +0000 2016 I like this movie9
11 Thu Jun 30 09:39:57 +0000 2016 I like this movie10
12 Thu Jun 30 10:29:57 +0000 2016 I like this movie11
13 Thu Jun 30 11:29:57 +0000 2016 I like this movie12
12 Thu Jun 30 12:29:57 +0000 2016 I like this movie13
我想選擇數據小時分隔。 例如,我想選擇小時小於或等於06的所有數據,然後我想選擇小時大於07的數據。由於列的數據是datetime形式:Thu Jun 30 12:29:57 +0000 2016,我不知道該如何處理。謝謝你的幫助!
的SQL是急(急SQL):
select id, created, text from t1 where created_at <= 6
請指定rdms(mysql,mssql,oracel) – Arion
將一些創建的值調整爲其他日期。 – jarlh