Celebrate National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17



Posted on 2007-04-10
Medium Priority
Last Modified: 2012-06-27

I am using MS Access 2000 and after repairing an old database and  importing tables from another database (that users copied... and were inserting information), I wrote a few queries to insert any missing records from table B to table A.  I also created a new field in the original tables and the imported tables called GroupID.  Tables from the imported tables have a GroupID of 2.  So when I update the records, i know which tables the records originally resided.

the problem is that this seemed to work just for one group.  I am using WHERE NOT EXISTS.  And if I understand correctly, based on the subquery, if the subquery is TRUE or FAlse, the outer statement is run (please tell me if I am wayyyyy off).

can someone tell me if I am on the right track?  I know that syntax for writing queries in Access is different:

Example to insert into tbl_checkouts, all missing records from tbl_checkouts1.

I ran a select query first to determine the records that should be inserted (but it seems that my select query is different than my insert's select statement):


SELECT [User ID], [Check out Date], GroupID
FROM tbl_checkouts
    (SELECT * FROM tbl_checkouts1 WHERE tbl_checkouts1.[User ID] = tbl_checkouts.[User ID]);


INSERT INTO tbl_checkouts ( [User ID], [Check out Date],GroupID)
SELECT [User ID], [Check out Date], GroupID
FROM tbl_checkouts
    (SELECT * FROM tbl_checkouts1 WHERE tbl_checkouts1.[User ID] = tbl_checkouts.[User ID]);

the problem is that I am not sure if my exists statement is correct in access..

Thanks in advance
Question by:synergeticsoul
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
LVL 66

Accepted Solution

Jim Horn earned 750 total points
ID: 18882551
WHERE tbl_checkouts.[User ID] NOT IN  (SELECT tbl_checkouts1.[User ID]  FROM tbl_checkouts1)

Author Comment

ID: 18882700
sorry, working on a new table now...
so, I want to grab the records that are in the second table (labeled, NAME+1) and see if these records exists in the main table...i want to check for missing data.  therefore, i need to do the following??

SELECT * FROM [tbl_checkout item] '[tbl_checkout item] is the original table
WHERE  [tbl_checkout item].[fk tape ID] NOT IN  (SELECT [tbl_checkout item1].[fk tape ID]  FROM [tbl_checkout item1])??
LVL 66

Expert Comment

by:Jim Horn
ID: 18882740
>so, I want to grab the records that are in the second table (labeled, NAME+1)
>and see if these records exists in the main table...

A better approach would be this way...

FROM YourNAME+1Table
LEFT JOIN YourNAMETable on YourNAME+1Table.ID = YourNAMETable.ID

All YourNAME+1Table records will be returned, and if the record is in the YourNAMETable table than that ID will be returned, otherwise that column will be NULL.
Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.


Author Comment

ID: 18882889
ok...when I do the following query:

SELECT [tbl_checkout item1].ID, [tbl_checkout item].ID
FROM  [tbl_checkout item1]
LEFT JOIN  [tbl_checkout item] ON  [tbl_checkout item1].ID= [tbl_checkout item].ID

i just get the total records that are in [tbl checkout item1].  i just need to pull all the records from  [tbl_checkout item1] (and there are other tables like this) that don't exist in the original table:
 [tbl_checkout item].  I am then going to select those records and insert them into the original table:
 [tbl_checkout item].

am i better off first doing the join you mentioned above or something else???

SELECT * FROM [tbl_checkout item] '[tbl_checkout item]
WHERE  [tbl_checkout item].[fk tape ID]
NOT IN  (SELECT [tbl_checkout item1].[fk tape ID]  FROM [tbl_checkout item1])

Author Comment

ID: 18882998
Yes...this doesn't work:

SELECT ID, [fk tape ID], [date checked in], [fk checkout ID], [in Library]
FROM [tbl_checkout item]
WHERE [fk tape ID] NOT IN
 (SELECT  [tbl_checkout item1].[fk tape ID]  FROM [tbl_checkout item1])

it still returns records that exist in the main table.  open to suggestions...

Author Comment

ID: 18885023
I got it finally.  I used WHERE NOT EXISTS.

thanks so much  

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Did you know that more than 4 billion data records have been recorded as lost or stolen since 2013? It was a staggering number brought to our attention during last week’s ManageEngine webinar, where attendees received a comprehensive look at the ma…
We live in a world of interfaces like the one in the title picture. VBA also allows to use interfaces which offers a lot of possibilities. This article describes how to use interfaces in VBA and how to work around their bugs.
With Microsoft Access, learn how to specify relationships between tables and set various options on the relationship. Add the tables: Create the relationship: Decide if you’re going to set referential integrity: Decide if you want cascade upda…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question