SQL插入#TEMP表

Question

CREATE TABLE #TEMP (Date NVARCHAR(256),Pending NVARCHAR(256),Complete NVARCHAR(256) ,Total NVARCHAR(256)); 
INSERT INTO #TEMP (Date,Pending,Total) 
SELECT DISTINCT(DATEE),'','' from E_R_MainT 
GROUP BY DATEE 

UPDATE #TEMP 
SET Pending=(SELECT COUNT(R_ID) FROM E_R_MainT WHERE STATUS !='S_2' GROUP BY (CONVERT(char(10), HOD_DT ,126))) 
WHERE #TEMP.Date = (SELECT DISTINCT(DATEE) from E_R_MainT 
GROUP BY DATEE) 

UPDATE #TEMP 
SET Complete=(SELECT COUNT(R_ID) FROM E_R_MainT WHERE STATUS !='S_1' GROUP BY DATEE) 
WHERE #TEMP.Date = (SELECT DISTINCT(DATEE) from E_R_MainT 
GROUP BY DATEE) 

UPDATE #TEMP 
SET Total=(SELECT COUNT(R_ID) FROM E_R_MainT GROUP BY (DATEE)) 
WHERE #TEMP.Date = (SELECT DISTINCT(DATEE) from E_R_MainT 
GROUP BY DATEE 
SELECT * FROM #TEMP 

当执行我查询我得到这个错误：

“子查询返回的多个值，这是不允许”

下面

是我的表源：

我期待这样的输出：

Answer 1

一些容易混淆的命名会在这里等，我怀疑实际上，您的查询部分中出现的几个不同名称意在命名相同的列。

不应该有必要在这里临时表 - 只要使用合适的集合体：

SELECT 
    DATEE, 
    SUM(CASE WHEN Status = 's_1' THEN 1 ELSE 0 END) as Pending, 
    SUM(CASE WHEN Status = 's_2' THEN 1 ELSE 0 END) as Complete, 
    COUNT(*) 
FROM E_R_MainT 
GROUP BY DATEE 

Answer 2

这部分导致问题出现的你..

WHERE #TEMP.Date = (SELECT DISTINCT(DATEE) from E_R_MainT 
GROUP BY DATEE) 

变化to..below，没有必要的独特和group by

WHERE #TEMP.Date in (SELECT (DATEE) from E_R_MainT 

Answer 3

此示例代码从您：

UPDATE #TEMP 
SET Total=(SELECT COUNT(R_ID) FROM E_R_MainT GROUP BY (DATEE)) 
WHERE #TEMP.Date = (SELECT DISTINCT(DATEE) from E_R_MainT 
GROUP BY DATEE 
SELECT * FROM #TEMP 

这

SELECT COUNT(R_ID) FROM E_R_MainT GROUP BY (DATEE)) 
WHERE #TEMP.Date = (SELECT DISTINCT(DATEE) from E_R_MainT 
GROUP BY DATEE 

内容

不是只返回一个，我认为它返回多个值，检查所有查询上面的那个外观 像那样。我确定这是给你错误的原因。