Solved

How To Combine Tables in Access

Posted on 2004-08-02
9
8,662 Views
Last Modified: 2011-08-18
Hi.....could you please tell me step by step how to combine tables with the excat same fields in Access. I read somehting aboutn a UNION query but have no idea how to do it. Thanks.
0
Comment
Question by:Nomad2012
9 Comments
 
LVL 17

Expert Comment

by:walterecook
ID: 11698969
Select field1, field2, field3
from table1
Union
select field1, field2, field3
from table2

This will throw out duplicates
If you want to include duplicates...
Select field1, field2, field3
from table1
Union
select ALL field1, field2, field3
from table2

The key is the number of fields must be the same and in the same order and each field must be of the same datatype.

Walt
0
 
LVL 11

Expert Comment

by:SweatCoder
ID: 11698973
select * from mytable1
union
select * from mytable2

if field number and types are not identical, you can't use *, you need field list and they must match up, both number and data type.
0
 
LVL 17

Accepted Solution

by:
walterecook earned 500 total points
ID: 11698974
Whoops
I moved the all....
rather,
Select field1, field2, field3
from table1
Union ALL
select field1, field2, field3
from table2


sorry
0
Use Case: Protecting a Hybrid Cloud Infrastructure

Microsoft Azure is rapidly becoming the norm in dynamic IT environments. This document describes the challenges that organizations face when protecting data in a hybrid cloud IT environment and presents a use case to demonstrate how Acronis Backup protects all data.

 
LVL 11

Expert Comment

by:SweatCoder
ID: 11698976
i guess i got beat to the punch.  :-)
0
 
LVL 44

Expert Comment

by:GRayL
ID: 11698989
In union queries, the first select statement provides the field names for the query. Thus a query Query1:

Select fld1, fd2, fld3 from table1
order by fld1
UNION
select fld43, fld22, fld33 from table2
order by fld43;

provides a table called Query1 in which each of the data types in each field of table1 are the same in each of the successive tables;
0
 
LVL 13

Expert Comment

by:TommyTupa
ID: 11699921
Union queries are OK but you can do the same thing with no coding given tables with exact structures.

1. Select table, right click and copy.
2. Rightclick Paste.
3. Select Paste Append and select the table to append to.
4. Click OK and you've just combined tables.
0
 
LVL 17

Expert Comment

by:walterecook
ID: 11703746
Well Tommy, that's true.  But an Append query works much better for something like that.

Walt
0

Featured Post

Ransomware: The New Cyber Threat & How to Stop It

This infographic explains ransomware, type of malware that blocks access to your files or your systems and holds them hostage until a ransom is paid. It also examines the different types of ransomware and explains what you can do to thwart this sinister online threat.  

Question has a verified solution.

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

The first two articles in this short series — Using a Criteria Form to Filter Records (http://www.experts-exchange.com/A_6069.html) and Building a Custom Filter (http://www.experts-exchange.com/A_6070.html) — discuss in some detail how a form can be…
A simple tool to export all objects of two Access files as text and compare it with Meld, a free diff tool.
In Microsoft Access, when working with VBA, learn some techniques for writing readable and easily maintained code.
Access reports are powerful and flexible. Learn how to create a query and then a grouped report using the wizard. Modify the report design after the wizard is done to make it look better. There will be another video to explain how to put the final p…

829 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