Question

我需要计算GID上匹配的记录数

Dim iSubscriptionCount 

SQLCommand = "SELECT COUNT(*) AS Counter FROM Directories.GID, ClientSubscriptons.DirectoryGID FROM Directories, ClientSubscriptons WHERE Directories.GID = ClientSubscriptons.DirectoryGID;"
            rsTemp.Open SQLCommand, objConn, adOpenStatic, adLockReadOnly
            iSubscriptionCount = rsTemp("Counter")
            rsTemp.Close
            if iSubscriptionCount <= 0 then
                            %><a href="AddDirectory.asp?PGID=<% = rsDirectory("GID") %>"><% = GetIcon("Add", "Add Sub Directory", 25, True) %></a><%

我需要计算GID上匹配的记录数

Answer 1

你有两个条款...... sql应该读...

  SELECT COUNT(*) AS Counter, Directories.GID, ClientSubscriptions.DirectoryGID
    FROM  Directories, ClientSubscriptions
   WHERE Directories.GID = ClientSubscriptions.DirectoryGID

您可能还需要

 GROUP BY Directories.GID, ClientSubscriptions.DirectoryGID;

最后

Answer 2

我不太了解¿Visual Basic？但是你在同一个句子中有两个'FROM'。不会

SELECT COUNT(*) AS Counter 
FROM Directories, ClientSubscriptons 
WHERE Directories.GID = ClientSubscriptons.DirectoryGID

解决问题？

Answer 3

您的问题不是很清楚......如果您只想计算目录和客户订阅之间的匹配，您必须执行这样的JOIN

SELECT COUNT(*) AS Counter FROM 
Directories join ClientSubscriptons
on Directories.GID = ClientSubscriptons.DirectoryGID

特许经营部分完全模糊不清......你想在两个表上匹配franchiseGID吗？那么你的查询应该是这样的

SELECT COUNT(*) AS Counter FROM 
Directories join ClientSubscriptons
on Directories.GID = ClientSubscriptons.DirectoryGID
and Directories.FranchiseGID = ClientSubscriptons.FranchiseGID

要获得更准确的答案，请更清楚

查询两个表

3 个答案: