Sql server 在SQL Server 2000中查找总计数错误

我写了一个查询来获取总数。但它返回一个语法错误。查询如下：

((SELECT COUNT(*) FROM References 
  WHERE DocumentID = 15354 AND CustomerID = 896  AND ReferenceType = 1) 
  + 
(SELECT COUNT(*) FROM References 
 WHERE DocumentID = 15354 AND ReferenceType = 0)) AS TotalReference

---

如何修复错误？

您缺少count（）函数调用的参数，并且在ReferenceType=1之前缺少and（或or）

((SELECT COUNT(*) 
    FROM References 
    WHERE DocumentID = 15354 
    AND CustomerID = 896 
    AND ReferenceType = 1) + 
 (SELECT COUNT(*) 
    FROM References 
    WHERE DocumentID = 15354 
    AND ReferenceType = 0)) AS TotalReference

另外，您是否考虑过只在一个子查询中重试计数

(SELECT COUNT(*) 
    FROM References 
    WHERE DocumentID = 15354 
    AND ((ReferenceType = 1 AND CustomerID = 896)
        OR (ReferenceType = 0))) AS TotalReference

---

我对SQL Server没有太多的经验，但我认为这是缺少的，而且我认为在数量上需要一个*（在Oracle中这是需要的）。此外，在Oracle中，我们在开始时需要一个SELECT（和来自DUAL的SELECT，但在SQL Server中不需要）：

SELECT ((SELECT COUNT(*) FROM [References]
  WHERE DocumentID = 15354 AND CustomerID = 896 AND ReferenceType = 1) +
  (SELECT COUNT(*) FROM [References]
     WHERE DocumentID = 15354 AND ReferenceType = 0))
AS TotalReference

select 
((SELECT COUNT(*) FROM References 
WHERE DocumentID = 15354 
AND CustomerID = 896 
and ReferenceType = 1) 
+ 
(SELECT COUNT(*) FROM References 
WHERE DocumentID = 15354 
AND ReferenceType = 0)
) AS TotalReference