我有一个包含10多个查询的MS Access数据库,需要每周更新一次。分别导出每个,然后将每个单独上传到我服务器上的SQL是一件非常痛苦的事。
我尝试将Access数据库直接连接到我的SQL服务器,但由于安全原因,我的服务器不允许这样做。
我找到了一个模块,它会将查询打印在一个文件中,但它只打印标题,这很有用但不完全正是我要找的。
这是模块代码:
Public Sub IterateQueryDefsCollection()
Dim dbMain As DAO.Database
Dim qdf As DAO.QueryDef
Dim qdfTemp As DAO.QueryDef
Set dbMain = CurrentDb
For Each qdf In dbMain.QueryDefs
Debug.Print qdf.Name 'Prints name of query
Set qdfTemp = dbMain.QueryDefs(qdf.Name)
Debug.Print qdfTemp.SQL 'Prints SQL Syntax of query
Next
End Sub
我不编写这些代码,而且我仍然是SQL的新手,所以我的问题就是......有没有办法让我的所有查询及其数据都导出到.sql文件。< / p>
提前谢谢。
答案 0 :(得分:1)
您的SQL服务器的身份验证过程无法“知道”尝试连接到哪个或哪个应用程序。如果您提供有效凭据,则它应接受连接尝试。正常连接到SQL Server时,您提供什么类型的凭据? (当它工作时)当您指定Access尝试连接的凭据时使用相同的凭据,并且Access连接也将起作用。如果您在访问内部创建了链接表,Access应该要求您指定这些连接凭据。一旦有了连接到sql server的有效链接表,就可以对SQL Server表运行Access查询(使用Access Linked Table作为指针)
答案 1 :(得分:1)
我很困惑为什么你想要每周更新十个查询。在我看来这些应该是参数驱动等。请注意,以下内容不会移动数据。在我看来,代码中的一些追加查询应该很好地处理。
以下是我编写的一个模块,用于尝试将Access MDB中的所有查询升迁到服务器。请注意,由于其中一些查询是“堆叠”的,即它们称为其他查询,因此您必须多次运行此子例程,直到它不再升级为止。
Sub CopyAllQueriesAsViewsDAO()
Dim strError As String, strQueryName As String, lngQueryID As Long
Dim Q As QueryDef, blnSuccessfulQ As Boolean
Dim strSQL As String, strNewSQL As String, strConnect As String
Dim intCountFailure As Integer, intCountSuccessful As Integer
Dim intAlreadyAnError As Integer, strAction As String
Dim mydatabase As DAO.Database, myquerydef As DAO.QueryDef
On Error GoTo tagError
strConnect = "ODBC;DRIVER={sql server};DATABASE=" & _
strTestDatabaseName & ";SERVER=" & strSQLServerName & ";" & _
"Trusted_Connection=Yes"
DoCmd.Hourglass True
For Each Q In dbsPermanent.QueryDefs
intAlreadyAnError = 0
strQueryName = Q.Name
If Left(strQueryName, 4) = "~sq_" Then
Else
strError = ""
strAction = ""
lngQueryID = FetchQueryID(strQueryName, blnSuccessfulQ) ' Add the record or locate the ID
If blnSuccessfulQ = False Then
strNewSQL = adhReplace(Q.SQL, vbCrLf, " ")
strNewSQL = Left(strNewSQL, InStr(strNewSQL, ";") - 1)
strNewSQL = ConvertTrueFalseTo10(strNewSQL)
tagRetryAfterCleanup:
Set myquerydef = dbsPermanent.CreateQueryDef("") 'Q.Name & " DAO Test")
myquerydef.ReturnsRecords = False
myquerydef.Connect = strConnect
myquerydef.SQL = "CREATE VIEW [" & strQueryName & "] AS " & strNewSQL
myquerydef.Execute
myquerydef.Close
strSQL = "UPDATE zCreateQueryErrors SET zcqeErrorMsg = 'Successful' " & _
"WHERE ID=" & lngQueryID & ";"
CurrentDb.Execute strSQL, dbFailOnError
intCountSuccessful = intCountSuccessful + 1
End If
End If
tagResumeAfterError:
Next
DoCmd.Hourglass False
MsgBox "There were " & intCountSuccessful & " successful." & vbCrLf & _
intCountFailure & " failures."
Exit Sub
tagError:
' MsgBox Err.Description
Dim errX As DAO.Error, strFunctionName As String, intPosnFunction As Integer
Dim strThisError As String
If Errors.Count > 1 Then
For Each errX In DAO.Errors
strThisError = mID(errX.Description, 48)
If intAlreadyAnError > 5 Then ' Hit 10 errors so don't attempt to clean up the query
If errX.Number <> 3146 Then
strError = strError & "After fix: " & errX.Number & ": " & strThisError & " "
End If
Else
Select Case errX.Number
Case 3146 ' Ignore as this is the generic OLE db error
Case 195 ' 'xxx' is not a recognized function name. > Insert dbo. in front of function name
intAlreadyAnError = intAlreadyAnError + 1
strFunctionName = mID(strThisError, 2, InStr(2, strThisError, "'") - 2)
intPosnFunction = InStr(strNewSQL, strFunctionName)
strNewSQL = Left(strNewSQL, intPosnFunction - 1) & "dbo." & mID(strNewSQL, intPosnFunction)
strAction = strAction & "Inserted dbo for " & strFunctionName & " "
Resume tagRetryAfterCleanup
' The ORDER BY clause is invalid in views, .... , unless TOP is also specified.
Case 1033 'TOP 100 PERCENT
strNewSQL = Left(strNewSQL, 7) & " TOP 100 PERCENT " & mID(strNewSQL, 8)
strAction = strAction & "Inserted TOP 100 PERCENT "
Resume tagRetryAfterCleanup
Case Else
strError = strError & errX.Number & ": " & mID(errX.Description, 48) & " "
End Select
End If
Next errX
Else
strError = Err.Number & ", " & Err.Description
End If
strSQL = "UPDATE zCreateQueryErrors SET zcqeErrorMsg = '" & adhHandleQuotes(strError) & "', " & _
"zcqeAction = '" & strAction & "', zcqeFinalSQL = '" & adhHandleQuotes(strNewSQL) & "' " & _
"WHERE ID=" & lngQueryID & ";"
CurrentDb.Execute strSQL, dbFailOnError
intCountFailure = intCountFailure + 1
Resume tagResumeAfterError
End Sub
Public Function ConvertTrueFalseTo10(strIncoming As String)
Dim strIntermediate As String, intPosn As Integer
strIntermediate = strIncoming
intPosn = InStr(strIntermediate, "=false")
While intPosn <> 0
strIntermediate = Left(strIntermediate, intPosn - 1) & "=0" & mID(strIntermediate, intPosn + 6)
intPosn = InStr(strIntermediate, "=false")
Wend
intPosn = InStr(strIntermediate, "=true")
While intPosn <> 0
strIntermediate = Left(strIntermediate, intPosn - 1) & "=1" & mID(strIntermediate, intPosn + 5)
intPosn = InStr(strIntermediate, "=true")
Wend
ConvertTrueFalseTo10 = strIntermediate
End Function
Function FetchQueryID(strQueryName As String, blnSuccessfulQ As Boolean) As Long
Dim myRS As Recordset
Dim strSQL As String
blnSuccessfulQ = False
strSQL = "SELECT ID, zcqeErrorMsg FROM zCreateQueryErrors " & _
"WHERE zcqeName='" & strQueryName & "';"
Set myRS = dbsPermanent.OpenRecordset(strSQL, dbOpenSnapshot)
If myRS.EOF Then
Set myRS = dbsPermanent.OpenRecordset("zCreateQueryErrors", dbOpenSnapshot)
myRS.AddNew
myRS!zcqeName = strQueryName
myRS.Update
myRS.Move 0, myRS.LastModified
FetchQueryID = myRS!ID
Else
myRS.MoveFirst
FetchQueryID = myRS!ID
If myRS!zcqeErrorMsg = "Successful" Then
blnSuccessfulQ = True
End If
End If
myRS.Close
Set myRS = Nothing
End Function
Public Function adhHandleQuotes(strValue As String) As String
' Fix up all instances of a quote within a string by
' breaking up the string, and inserting Chr$(34) whereever
' you find a quote within the string. This way, Jet can
' handle the string for searching.
'
' From Access 97 Developer's Handbook
' by Litwin, Getz, and Gilbert (Sybex)
' Copyright 1997. All rights reserved.
'
' Solution suggested by Jurgen Welz, a diligent reader.
' In:
' strValue: Value to fix up.
' Out:
' Return value: the text, with quotes fixed up.
' Requires:
' adhReplace (or some other function that will replace
' one string with another)
'
' Example:
' adhHandleQuotes("John "Big-Boy" O'Neil") returns
' "John " & Chr$(34) & "Big-Boy" & Chr$(34) & " O'Neil"
Const QUOTE As String = """"
Const SingleQUOTE As String = "'"
adhHandleQuotes = adhReplace(strValue, SingleQUOTE, _
SingleQUOTE & SingleQUOTE)
End Function
Function adhReplace(ByVal varValue As Variant, _
ByVal strFind As String, ByVal strReplace As String) As Variant
' Replace all instances of strFind with strReplace in varValue.
' From Access 97 Developer's Handbook
' by Litwin, Getz, and Gilbert (Sybex)
' Copyright 1997. All rights reserved.
' In:
' varValue: value you want to modify
' strFind: string to find
' strReplace: string to replace strFind with
'
' Out:
' Return value: varValue, with all occurrences of strFind
' replaced with strReplace.
Dim intLenFind As Integer
Dim intLenReplace As Integer
Dim intPos As Integer
If IsNull(varValue) Then
adhReplace = Null
Else
intLenFind = Len(strFind)
intLenReplace = Len(strReplace)
intPos = 1
Do
intPos = InStr(intPos, varValue, strFind)
If intPos > 0 Then
varValue = Left(varValue, intPos - 1) & _
strReplace & mID(varValue, intPos + intLenFind)
intPos = intPos + intLenReplace
End If
Loop Until intPos = 0
End If
adhReplace = varValue
End Function
答案 2 :(得分:0)
你问是否有办法为此导出SQL文件。有,但你必须编写代码来执行它,即遍历查询结果的每一行并编写一个insert语句(即INSERT INTO(Field1,Field2)VALUES(value1,value2)(value3,value4)等等,它是目标数据库引擎的正确SQL方言。
但是,它可能很容易导出到CSV文件(或制表符分隔或其他),并让您的数据库导入该文件。
但是,没有真正的方法可以知道如何回答你的问题,因为关于查询实际执行的内容还不够详细。如果它们是INSERT语句,则上述内容将完全符合您的要求。
如果它们是更新,那就更复杂了。
但也许以上内容可以让你开始。