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Links To Access Code Examples

Create Recordset With AddNew
Multi-Select List Boxes
Update Field(s) In A Recordset
Import A Tab Delimited File
Export Excel FileDialog
Create Excel Within Access
Open Excel Within Access
Open Excel OBJ From Access
Import Tab Delim w/WinAPI
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Using TempVars For Globals
Access Error Handling
Loop Through Form Controls
Insert A Calendar Control
Create A Filtered Recordset
Populate Combo Boxes
Bookmarks And Forms
Combo Box Multiple Sources
Passing Form Objects
Create VBA SQL Statements
Create Dynamic Queries
Display File Images On A Form
Manipulate Files via VBA
Manipulate Files via Scripting
Number Subform Records
Reference Subform Objects
Parse Delimited Fields
Parameterized Queries (VBA)
Manipulating QueryDefs In VBA
FindFirst On Combined Keys
Using The Dlookup Command
Execute SQL Delete Records
Commit Form To Table
Report With No Data
Reference Form Objects
DSNLess Connections To MySQL
Print Active Form Record
Count Records in Linked Tables
Delete Empty Tables
Open Linked SQL Tables

 

Parsing A Delimited Text or Memo Field

Sometimes the developer has little control on the format of data for "migration" applications. Occasionally, files from mainframes or other systems will use a single text string to store multiple occurrances of data, each occurrance delimited by characters such as commas, pipes or spaces. The example below shows how to use the "Split" function to separate out each substring within a delimited string. In the example below, assume that "Field1" represents the social security number, "Field2" a name, and the next field each zip code where the individual has lived. The pipe character is used as the delimiter in this example.

A record set might look something like this:

554778569 John Doe |91440|87276|55569|95124|
613659990 Joey Smart |22189|50091|

The program would create six records in the following format:

554778569 John Doe 91440
554778569 John Doe 87276
554778569 John Doe 55569
554778569 John Doe 95124
613659990 Joey Smart 22189
613659990 Joey Smart 50091

Program Code

Option Compare Database
Option Explicit

' ***********************************************************************
' Explode Piped Data into Individual Records
' ***********************************************************************
Public Function ReformatPipedDataSplit()

Dim db As Database
Dim recIn As Recordset
Dim recOut As Recordset
Dim strParsedData() As String
Dim i As Long

' ***********************************************************************
' Open the Files
' ***********************************************************************
Set db = CurrentDb()

' ***********************************************************************
' Open the Files For The Division Open Orders
' ***********************************************************************
Set recIn = db.OpenRecordset("tblMyFileWithPipes")
Set recOut = db.OpenRecordset("tblMyExplodedFile")

' ***********************************************************************
' Loop Through and Create The Exploded File
' ***********************************************************************
Do
' ***********************************************************************
' Parse The Input File into multiple output records
' ***********************************************************************
    If IsNull(recIn!MyMemoField) Then
        GoTo Skip_Record
    End If
    
    strParsedData = Split(recIn!MyMemoField, "|")
    
    For i = 0 To UBound(strParsedData)
        If strParsedData(i) <> "" Then
            recOut.AddNew
            recOut!Field1 = recIn!Field1
            recOut!Field2 = recIn!Field2
            recOut!Exploded = strParsedData(i)
            recOut.Update
        End If
    Next i
    
' ***********************************************************************
' Get the next record
' ***********************************************************************
Skip_Record:
    recIn.MoveNext
Loop Until recIn.EOF

recIn.Close
recOut.Close
Set recIn = Nothing
Set recOut = Nothing
Set db = Nothing

End Function