Question

VBA code to copy table structure and data from one access database to another

Asked by: sxxgupta

Right now I have a database that contains liked SQL tables.  If I want to analyze data "offline", I simply just cannot copy the database as another .mdb file because the tables are copied as linked SQL tables.  Could someone please help me in developing VBA code that will copy the table structure and data to another .mdb file?  The tables being copied should have the same name.  Right now I have some code bits for exporting queries, macros, etc to an offline database defined by the variable qaPath (see code below).  I want to follow the same logic of copying the table structure and data of these linked SQL tables that I can insert into the code below.  Right now I am using a macro (called 'z copy tables') to peform this task, where essentially I am using artificially created queries to output the data of these linked tables and then copying these queries outputs as data inputs to my offline tables.  I think this is extremely inefficient especially if new linked SQL tables are created that I have to keep track of it.  I believe VBA is the way to go.  I have attached an example of one line of the macro below:

Transfer Type: Export
Database Type: Microsoft Access
Database Name: C:\Documents and Settings\sanjayg\Desktop\qa.mdb
Object Type: Table
Source: copy Test  ------------------------The name of the table is Test and I have created query 'copy Test' to output table Test data
Destination: Test --------------------------The new name of the table is the same as the name of the linked table
Structure Only: No

I would have to do this about 100 times because there are about that many tables.  This means I would have to create 100 queries and then fill in 100 line items in the macro to copy the table structure and data and export the table object, its structure, and data to "qaPath".

Please help.

Sub exportdbobjects1()
Dim db As DAO.Database, qdf As DAO.QueryDef, qaPath As String, j As Integer, rpt, mdl, frm, mac
On Error GoTo ProcErr
qaPath = "C:\Documents and Settings\sanjayg\Desktop\qa.mdb"
Set db = CurrentDb
 
 For Each qdf In db.QueryDefs
   If Left(qdf.Name, 1) <> "~" Then
       DoCmd.TransferDatabase acExport, "Microsoft Access", qaPath, acQuery, qdf.Name, qdf.Name
   End If
Next
 
For j = 0 To db.Containers("Reports").Documents.Count - 1
    rpt = db.Containers("Reports").Documents(j).Name
    DoCmd.TransferDatabase acExport, "Microsoft Access", qaPath, acReport, rpt, rpt
Next
 
For j = 0 To db.Containers("Modules").Documents.Count - 1
    mdl = db.Containers("Modules").Documents(j).Name
    DoCmd.TransferDatabase acExport, "Microsoft Access", qaPath, acModule, mdl, mdl
Next
 
For j = 0 To db.Containers("Scripts").Documents.Count - 1
    mac = db.Containers("Scripts").Documents(j).Name
    DoCmd.TransferDatabase acExport, "Microsoft Access", qaPath, acMacro, mac, mac
Next
 
For j = 0 To db.Containers("Forms").Documents.Count - 1
    frm = db.Containers("Forms").Documents(j).Name
    DoCmd.TransferDatabase acExport, "Microsoft Access", qaPath, acForm, frm, frm
Next
 
DoCmd.RunMacro "z copy tables"
 
MsgBox "Finished Exporting Objects."
 
ProcExit:
   On Error Resume Next
   Exit Sub
ProcErr:
   MsgBox Err.Description
   Resume ProcExit
End Sub

                                  
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Asked On
2009-09-11 at 07:28:09ID24724655
Topics

Access Coding/Macros

,

Microsoft Access Database

Participating Experts
1
Points
500
Comments
22

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Answers

 

by: capricorn1Posted on 2009-09-11 at 08:33:36ID: 25310584

to copy a table to another .mdb, create a make table query, something like this



currentdb.execute "select T1.* into TX in 'c:\folderX\xDb.mdb' from T1"

 

by: sxxguptaPosted on 2009-09-11 at 08:37:00ID: 25310609

How would I write a do loop if I have many tables?  Is there a way for VBA to recognize the names of the tables without me having to type that in the code and automatically use that same same for the copied table in the new db?

 

by: capricorn1Posted on 2009-09-11 at 08:45:08ID: 25310689


dim td as dao.tabledef, db as dao.database
set db=currentdb

for each td in db.tabledefs
      if left(td.name,4)<>"msys" then
       db.execute "select ["& td.name &"].* into ["& td.name &"] in 'c:\folderX\xDb.mdb'  from ["& td.name &"]"

    end if
next

 

by: capricorn1Posted on 2009-09-11 at 08:59:42ID: 25310822

you can also use this

dim extDb as string
extDb="c:\folderX\xDB.mdb"
docmd.TransferDatabase acExport, "Microsoft Access", extDB, acTable, _
        ["& td.name &"], ["& td.name &"], false

 

by: sxxguptaPosted on 2009-09-11 at 10:23:33ID: 25311605

I did try that solution earlier, what I get is the same linked tables copied over.  So if I copy this db onto my flash drive and take it home, I cannot open the tables because the link to the SQL tables is not there.  Is there a way that I can perhaps establish a connection to the sql tables and then do a data dump of each table into a new access table offline?

 

by: sxxguptaPosted on 2009-09-11 at 10:26:58ID: 25311642

The "Description" section under each Table's properties states the following connection:

ODBC;DSN=QA;APP=Microsoft® Access;WSID=GENE;DATABASE=QA;Network=DBMSSOCN;Address=Webby1,1433;TABLE=mytablename

and I have about 100 of these........

 

by: capricorn1Posted on 2009-09-11 at 10:30:33ID: 25311671

did you try the codes on http:#25310689 ?

 

by: sxxguptaPosted on 2009-09-11 at 11:40:26ID: 25312288

Yes.  It is only copying the linked format, not creating the static access format tables........I have a picture attached of my the tables in my destination database.  As you can see, the table were copied or transferred over as linked SQL tables:(

 

by: sxxguptaPosted on 2009-09-11 at 11:54:10ID: 25312420

right now I have to manually create 100 or so separate select queries that will output all the fields of the table.   And then copy the data output from these select queries to my destination database.  I have attached a picture of the macro.

 

by: capricorn1Posted on 2009-09-11 at 12:01:23ID: 25312485

i just tried the codes, copying a linked SQL table and the table was created to the external DB.

how did you use the codes?

 

by: sxxguptaPosted on 2009-09-11 at 12:01:40ID: 25312487

ok, partial success..................

I chose one table and it copied over as a static access table and not a linked SQl table.  However, I had to physically type the name of the table.  How can I automate the logic process below where vba can take over selecting the names of the tables instead of me having to type them?  Thanks.

For Each tbl In db.TableDefs
   If Left(tbl.Name, 4) <> "msys" Then
       fPrg.AppendMessage "Exporting table " & tbl.Name
       'DoCmd.TransferDatabase acExport, "Microsoft Access", qaPath, acTable, tbl.Name, tbl.Name, False, True
        db.Execute "select 90F0069.* into 90F0069 in 'C:\Documents and Settings\sanjayg\Desktop\qa.mdb' from 90F0069"
       'fPrg.UpdateTime
   End If
Next

                                              
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by: capricorn1Posted on 2009-09-11 at 12:04:47ID: 25312509

the codes i posted is very clear..

db.execute "select ["& td.name &"].* into ["& td.name &"] in 'c:\folderX\xDb.mdb'  from ["& td.name &"]"


why do you have to type the table names?

 

by: sxxguptaPosted on 2009-09-11 at 12:05:23ID: 25312514

This is the code that I used for the parameters defined:

For Each tbl In db.TableDefs
  If Left(tbl.Name, 4) <> "msys" Then
      fPrg.AppendMessage "Exporting table " & tbl.Name
      'DoCmd.TransferDatabase acExport, "Microsoft Access", qaPath, acTable, tbl.Name, tbl.Name, False, True
      'fPrg.UpdateTime
  End If
Next

 

by: sxxguptaPosted on 2009-09-11 at 12:06:00ID: 25312518

I will try.....

 

by: sxxguptaPosted on 2009-09-11 at 12:08:04ID: 25312536

This is what I am trying........verbatim except for the destination address.

db.Execute "select [" & td.Name & "].* into [" & td.Name & "] in 'C:\Documents and Settings\sanjayg\Desktop\qa.mdb'  from [" & td.Name & "]"

 

by: sxxguptaPosted on 2009-09-11 at 12:09:41ID: 25312554

ok, I get a complie error where "td" is not defined.

 

by: capricorn1Posted on 2009-09-11 at 12:10:44ID: 25312568

the define it as i have define it in my post at http:#25310689

 

by: sxxguptaPosted on 2009-09-11 at 12:10:51ID: 25312570

Here is my complete code with variables

Sub exportdbobjects2()
Dim db As dao.Database, qdf As dao.QueryDef, tbl As dao.TableDef, qaPath As String, j As Integer, fPrg As Form, rpt, mdl, frm, mac
On Error GoTo ProcErr
qaPath = "C:\Documents and Settings\sanjayg\Desktop\qa.mdb"
Set db = CurrentDb
Set fPrg = New Form_zfrmProgress
'fPrg.Visible = True
' you can set the caption if you like:
fPrg.Caption = "Exporting database objects..."
 
db.Execute "select [" & td.Name & "].* into [" & td.Name & "] in 'C:\Documents and Settings\sanjayg\Desktop\qa.mdb'  from [" & td.Name & "]"
 
fPrg.StopTimer
 
'MsgBox "Finished Exporting Objects."
 
ProcExit:
   On Error Resume Next
   DoCmd.Close acForm, fPrg.Name
   Exit Sub
ProcErr:
   MsgBox Err.Description
   Resume ProcExit
End Sub

                                              
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by: capricorn1Posted on 2009-09-11 at 12:13:40ID: 25312591

sxxgupta,

all you need to do is copy the codes i posted at http:#25310689

 

by: sxxguptaPosted on 2009-09-11 at 12:14:48ID: 25312599

Ok, I did, thank you.  I now get a "Object variable or With block variable not set" error.

 

by: capricorn1Posted on 2009-09-11 at 12:21:32ID: 25312652

post the codes *you* are using

 

by: sxxguptaPosted on 2009-09-11 at 12:25:01ID: 31627587

The solution works!!!!!!!!!!Thank you Capricorn.  Obviously I was not listening or reading very well and taking your advice literally:(  But thank you for hanging in there.  I know that it can be frustrating working with a novice:)

20120131-EE-VQP-002

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