Question

我想创建一个报告，显示sql server表中数据的统计信息。我感兴趣的表列是searchTerm，dateadded。现在我想获得每个searchterm的记录数，但也显示该searchterm的最早和最新dateadded。例如：

select searchterm, count(*) as recCount from SearchTable order by searchterm.

只会给我计数，所以我只需要日期和不同的记录。

Answer 1

试试这个：

SELECT
    searchterm,
    MIN(dateadded) AS minDateAdded, 
    MAX(dateadded) AS maxDateAdded, 
    count(*) as recCount
FROM SearchTable 
GROUP BY searchterm

他们GROUP BY将确保每一行都是不同的。

Answer 2

您可以使用MIN和MAX函数以及GROUP BY子句

SELECT searchterm, MIN(dateadded) AS earliest, MAX(dateadded) AS latest, COUNT(*) as recCount
FROM SearchTable
GROUP BY searchterm
ORDER BY searchterm

报告的SQL查询 - 选择最小日期

2 个答案: