我希望能够选择在接下来的两个小时之前或之后开始的课程，直到明天结束，但我不知道该怎么做。
我当前的sql在下面，我只能选择在今天的日期之后和当前时间之后的类。我希望能够只返回从现在开始直到明天结束的两个小时开始的课程。
我能够将当前日期和当前时间传递到我将构造sql语句的node.js函数中。另外，如果我需要使用它，我可以访问moment.js库。
任何帮助都将不胜感激。
SELECT DISTINCT b.name
, a.time
FROM class a
Inner join (SELECT class_id, count(clientid)
FROM bookings
GROUP BY class_id
HAVING count(clientid) < 10) as openClasses on
a.class_id = openClasses.class_id
JOIN class_detail b
ON a.class_id = b.id
JOIN branch c
ON a.branch_id = c.id
WHERE c.level <= ( SELECT d.level
FROM client d
WHERE d.facebook_id = 'xxxxxx'
)
AND a.date = '2016-08-17'
AND a.time >= '13.00.00';
我的表格如下：
BOOKINGS
+-----------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+-------------+------+-----+---------+-------+
| id | bigint(20) | NO | PRI | NULL | |
| CLIENT_ID | int(11) | NO | | NULL | |
| CLASS_ID | int(11) | NO | | NULL | |
| STATUS | varchar(10) | NO | | NULL | |
+-----------+-------------+------+-----+---------+-------+
mysql> show fields from BRANCH;
+---------------------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+---------------------+-------------+------+-----+---------+----------------+
| id | int(10) | NO | PRI | NULL | auto_increment |
| NAME | char(50) | NO | | NULL | |
| CONTACT_NO | char(50) | YES | | NULL | |
| MAP_IMG_PATH | char(200) | YES | | NULL | |
| ADDRESS | char(200) | YES | | NULL | |
| LEVEL | int(2) | NO | | NULL | |
| LOCATION | int(10) | YES | | NULL | |
| SECTOR_NAME | varchar(45) | YES | | NULL | |
| SECTOR_MAP_IMG_PATH | char(200) | YES | | NULL | |
+---------------------+-------------+------+-----+---------+----------------+
mysql> show fields from CLIENT;
+--------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------------+-------------+------+-----+---------+-------+
| id | int(10) | NO | PRI | NULL | |
| NAME | char(50) | NO | | NULL | |
| DOB | int(8) | NO | | NULL | |
| LOCAL_BRANCH | int(10) | YES | | NULL | |
| FACEBOOK_ID | char(50) | NO | | NULL | |
| START_DATE | int(8) | NO | | NULL | |
| EMAIL | char(50) | YES | | NULL | |
| PIN | int(4) | YES | | NULL | |
| END_DATE | int(8) | NO | | NULL | |
| LEVEL | int(2) | YES | | NULL | |
| TEL | varchar(20) | YES | | NULL | |
+--------------+-------------+------+-----+---------+-------+
mysql> show fields from CLASS_DETAIL;
+--------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------------+--------------+------+-----+---------+-------+
| id | int(10) | NO | PRI | NULL | |
| NAME | char(50) | NO | | NULL | |
| DESCRIPTION | char(200) | NO | | NULL | |
| CATEGORY | varchar(4) | YES | | NULL | |
| ACHIEVE_TYPE | char(200) | YES | | NULL | |
| IMG_M | varchar(200) | YES | | NULL | |
| IMG_F | varchar(200) | YES | | NULL | |
+--------------+--------------+------+-----+---------+-------+
mysql> show fields from CLASS;
+-----------+---------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-----------+---------+------+-----+---------+----------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| CLASS_ID | int(10) | YES | | NULL | |
| BRANCH_ID | int(10) | NO | | NULL | |
| DURATION | int(3) | YES | | NULL | |
| DATE | date | NO | | NULL | |
| TIME | time | NO | | NULL | |
| STATUS | char(1) | NO | | NULL | |
+-----------+---------+------+-----+---------+----------------+
7 rows in set (0.11 sec)