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[英]Combining two SQL ORACLE Select Statements with JOIN and COUNT
[英]combining two SQL SELECT COUNT(*) statements
我正在使用Microsoft Access 2007.我有两个SELECT COUNT(*)语句在没有组合的情况下运行正常,但是我希望将这些语句组合起来用作通过VBA的表单记录源。
1. SELECT Count(*) AS OrderCount FROM (SELECT DISTINCT OrderNo FROM tblDisposition);"
2. SELECT Count(*) AS ReviewCount FROM tblDisposition WHERE [ReviewClose]=0;
我知道已经存在很多这样的问题,例如:
Access 2007:“SELECT COUNT(DISCTINCT ...”
还有很多。 这是我尝试但仍然失败的原因:
SELECT (SELECT Count(*) AS OrderCount FROM (SELECT DISTINCT OrderNo FROM tblDisposition)),"
(SELECT Count(*) AS ReviewCount FROM tblDisposition WHERE [ReviewClose]=0);"
我将myForm上的组合SQL语句设置为recordsource,我有两个文本字段,我将controlsource设置为OrderCount和ReviewCount。 在我设置recorsource的表单加载事件中,两个文本字段都给出了#NAME错误,但是如果我只设置了一个SQL语句,它将在文本字段上显示正确的计数。
您可以使用以下SQL语句将两个计数作为两个值放在一行中:
SELECT
(
SELECT Count(*) AS OrderCount
FROM
(
SELECT DISTINCT OrderNo FROM tblDisposition
)
) AS OrderCount,
(
SELECT Count(*) AS ReviewCount
FROM tblDisposition
WHERE [ReviewClose]=0
) AS ReviewCount
FROM
(
SELECT COUNT(*) FROM tblDisposition
)
我想你的查询根本不起作用。 尝试像这样添加'* FROM':
SELECT * FROM
(SELECT Count(*) AS OrderCount FROM (SELECT DISTINCT OrderNo FROM tblDisposition)),
(SELECT Count(*) AS ReviewCount FROM tblDisposition WHERE [ReviewClose]=0)
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