Question

请查看此结果表，我想检索Invoice_Number上sales_rep的{{1}}的最后31-dec-2013

INVOICE_NUMBER  INVOICE_DATE        FK_SALES_REP_ID
519740000010026 12/31/13 10:14 AM   121
518210000010868 12/31/13 7:34 AM    91
519740000010050 12/31/13 2:29 PM    121
519920000010273 12/31/13 10:25 AM   94
514990000010269 12/31/13 10:51 AM   127
514990000010270 12/31/13 11:09 AM   127
505700000012330 12/31/13 12:12 PM   106
518210000010867 12/31/13 7:24 AM    91

结果表：

INVOICE_NUMBER  INVOICE_DATE        FK_SALES_REP_ID
518210000010868 12/31/13 7:34 AM    91
519920000010273 12/31/13 10:25 AM   94
519740000010050 12/31/13 2:29 PM    121
505700000012330 12/31/13 12:12 PM   106
514990000010270 12/31/13 11:09 AM   127

Answer 1

你的解决方案可能看起来像这样。重要的是确保选择MAX（INVOICE_TIME），其中日期等于您想要的日期。

SELECT * FROM Your.Table
WHERE 
    INVOICE_DATE = 
        (SELECT MAX(INVOICE_DATE) FROM Your.Table
         WHERE DATE(INVOICE_DATE) = '12/31/2013')

Answer 2

由于您没有指定DBMS，因此这是标准SQL：

select *
from
 (
   select t.*,
      row_number()
      over (partition by FK_SALES_REP_ID 
            order by INVOICE_DATE desc) as rn
   from tab as t
   where cast(INVOICE_DATE as date) = '12/31/13'
 ) as dt
where rn = 1

查找一天中的最后一条记录

2 个答案: