Question

ORDER BY

我的数据如上。我将传递开始日期和结束日期，以便在日期之间产生数据，如果日期不存在则必须插入空数据（带开始和结束日期的字典为空）。下面列出了“2015-12-02”，“2015-12-16”之间的日期。它必须如下所示。

[
  {
    start_time: "09:00",
    end_date: "2015-12-20",
    end_time: "13:55",
    start_date: "2015-12-15"
  },
  {
    start_time: "06:07",
    end_date: "2015-12-24",
    end_time: "08:09",
    start_date: "2015-12-22"
  },
  {
    start_time: "09:30",
    end_date: "2015-12-01",
    end_time: "18:00",
    start_date: "2015-12-01"
  },
  {
    start_time: "01:00",
    end_date: null,
    end_time: "04:00",
    start_date: null,

  },
  {
    start_time: "05:00",
    end_date: null,
    end_time: "08:00",
    start_date: null,

  }
]

有人可以帮我吗？

Answer 1

基本上你应该能够在字符串之间进行比较（比较函数是日期比较）。所以我先把它转换成日期 -

SELECT a.vd,
       a.vext,
       c.evalu
FROM   val_tb a
       join val_tb d
         ON A.va_record_id = d.red
       join carin b
         ON A.vext = b.source_pos_id
       join mapos c
         ON b.posd = c.posid
WHERE  d.valnum = 100008533
       AND d.vd IN ( 1887, 1890 )
       AND a.varnum = 1
       AND b.sname = 'cat';

现在你可以＆gt;＆lt; =运算符并迭代你拥有的事件列表。对于每个记录，转换start_date和end_date并检查它们是否填满了您要查找的条件。

获取日期的数据

1 个答案: