SQL Server：使用涉及从先前选择中选择的子查询的查询

Question

我正在尝试在 SQL Server 中创建一个查询，以确定一个人的姓名在列表中出现的次数，但该列表也是未知的，因此我必须从上一个选择索引中获取实际姓名...这很难解释，所以我会先显示查询，希望有人能提供帮助。

SELECT 
    SpeakerName, Spoken,
    (SELECT COUNT(SpeakerName)
     FROM tbl_SpeakerCard_Log
     WHERE SpeakerName = 'SpeakerName[i]' AND SpeakDate = '3-9-16') as TimesSpoken
FROM 
    tbl_SpeakerCard_Log
WHERE 
    AID = ####
ORDER BY 
    GeneralComment ASC

所以基本上，在SpeakerName[i] 中，我想以某种方式从外部Select 中获取SpeakerName。输出应该是这样的

+-------------+--------+-------------+
| SpeakerName | Spoken | TimesSpoken |
+-------------+--------+-------------+
| Holly       |      0 |           4 |
| Robert      |      1 |           5 |
| Mike        |      1 |           2 |
+-------------+--------+-------------+

Answer 1

试试这个：

select x.SpeakerName, x.Spoken, COUNT(*) as TimesSpoken
from tbl_SpeakerCard_Log x
WHERE AID = ####
and x.SpeakDate = '3-9-16'
group by x.SpeakerName, x.Spoken

此计算机上未安装 SSMS，因此无法对其进行测试。