如何在访问中运行查询循环? [英] How to run a loop of queries in access?

问题描述

我有一个数据库，其中的表充满了条件和错误消息，用于检查另一个数据库.

I have a database with a table which is full of conditions and error messages for checking another database.

我想运行一个循环，以便对照第二个数据库中的所有表检查所有这些条件，并生成一个给出错误的报告.

I want to run a loop such that each of these conditions is checked against all the tables in the second database and generae a report which gives the errors.

在ms访问中是否可行?

Is this possible in ms access.

例如，

querycrit表

querycrit table

id           query                                 error    
1           speed<25 and speed>56              speed above limit  
2           dist<56 or dist >78                dist within limit

我有超过400个类似这样的不同变量的查询.

I have more than 400 queries like this of different variables.

我要对其运行查询的表是

THe table against which I am running the queries is

记录表

id   speed     dist    accce   decele   aaa   bbb     ccc
1     33        34      44         33   33     33      33
2     45        44      55         55   55     22      23

致谢 ttk

推荐答案

以下是一些示例代码.它说明了两种不同类型的记录集的用法.您可能希望阅读Allen Browne和

Here is some more sample code. It illustrates the use of two different types of recordsets. You may wish to read VBA Traps: Working with Recordsets by Allen Browne and List of reserved words in Access 2002 and in later versions of Access .

Dim rs As DAO.Recordset
Dim rs2 As ADODB.Recordset

Set rs = CurrentDb.OpenRecordset("querycrit")
Set rs2 = CreateObject("ADODB.Recordset")
rs2.ActiveConnection = CurrentProject.Connection
For Each tdf In CurrentDb.TableDefs
'EDIT: TableDefs includes Microsoft System tables and '
'these should never be tampered with. They all begin with Msys '
'so we can leave them out of the loop here. '
   If Left(tdf.Name, 4) <> "msys" And tdf.Name <> "querycrit" Then
        rs.MoveFirst
        strSQL = "SELECT * From [" & tdf.Name & "] WHERE "

        Do While Not rs.EOF
            On Error Resume Next
            Debug.Print tdf.Name
            rs2.Open strSQL & " " & rs![query]
            If Err.Number = 0 Then
                On Error GoTo 0
                If Not rs2.EOF Then
                    Debug.Print rs![Error]
                    Debug.Print rs2.GetString
                End If
            End If
            Err.Clear
            rs2.Close
            rs.MoveNext

        Loop
    End If
Next
End Sub

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