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06.11.2007 at 09:13AM PDT, ID: 22626273
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6.6

Insert/Update records into Access table, field by field

Asked by Gryzn in Microsoft Access Database, Visual Basic Programming, VB Database Programming

Tags: , , , ,

I need to solve the following problem:

On the rights site, we have a text file with data, delimited by comma (C:\DATA.TXT).
The fist line contains the field names. The first field is always an unique USERID.

On he left site, we have a table (TABLE1) in a Access Database.
The table has a unique key (USERID)

I need to transfer the records from the text file into the Access table in the following way:

If the USERID doesn't exists in the table, insert a new record
If the USERID already exists, update the record.

All easy yet, but now it comes:

The count, order and names of the fields MAY NOT be the same in text file and table.

Therefore, I cannot blindly create an INSERT SQL. I need to compare the fieldnames before, to find corresponding fieldnames.
The same problem exists with an UPDATE.

How can that be done?


Additional informations:

- Must use VB6 with ADO
- The table contains about a millon records
- Speed is an issue
- Must be generic (i.e. no fieldnames in code)

GryznStart Free Trial
[+][-]06.11.2007 at 09:37AM PDT, ID: 19259471

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[+][-]06.11.2007 at 09:40AM PDT, ID: 19259489

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[+][-]06.11.2007 at 10:31AM PDT, ID: 19259881

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[+][-]06.11.2007 at 11:58AM PDT, ID: 19260605

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[+][-]06.11.2007 at 12:07PM PDT, ID: 19260703

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About this solution

Zones: Microsoft Access Database, Visual Basic Programming, VB Database Programming
Tags: access, insert, records, table, update
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Solution Provided By: Computer101
Participating Experts: 3
Solution Grade: A
 
 
 
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