?
Solved

Get rid of Duplicate records in MS SQL 2000

Posted on 2006-11-29
2
Medium Priority
?
440 Views
Last Modified: 2011-09-20
Table R
Category   Classes  Brand      Model      
AAA          BBB       CCC        DDD
BBB          CCC       DDD        EEE
CCC         AAA       BBB         ZZZ
CCC         AAA       BBB         EEE

Table A
Category   Classes  Brand      Model      
AAA          BBB       CCC        AAA
BBB          CCC       DDD        FFF
CCC         AAA       BBB         ZZZ (* - already exist in table R)
CCC         AAA       CCC        ZZZ

I need to insert data in Table A into Table B, but don't want the duplicate record (see *) as Table R is a reference table and no duplicate records in allowed.  How to prevent Table R from having duplicate records after the insertion?

Please advice.

Thank you.
0
Comment
Question by:woo_kh
2 Comments
 
LVL 75

Accepted Solution

by:
Aneesh Retnakaran earned 200 total points
ID: 18043360
INSERT INTO R
SELECT *
FROM A a1
WHERE NOT EXISTS (SELECT 1 FROM R WHERE Category = A1.Category and Classes = A1.Classes and Brand = A1.Brand AND Model = A1.Model)
0
 
LVL 17

Expert Comment

by:HuyBD
ID: 18043373
insert into tableA
select * from tableB B
left join tableR R on R.Category=B.Category and R.Brand=B.Brand and R.Model=B.Model
where R.Category is null
0

Featured Post

Get your problem seen by more experts

Be seen. Boost your question’s priority for more expert views and faster solutions

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

A Stored Procedure in Microsoft SQL Server is a powerful feature that it can be used to execute the Data Manipulation Language (DML) or Data Definition Language (DDL). Depending on business requirements, a single Stored Procedure can return differe…
In part one, we reviewed the prerequisites required for installing SQL Server vNext. In this part we will explore how to install Microsoft's SQL Server on Ubuntu 16.04.
Via a live example combined with referencing Books Online, show some of the information that can be extracted from the Catalog Views in SQL Server.
Viewers will learn how to use the UPDATE and DELETE statements to change or remove existing data from their tables. Make a table: Update a specific column given a specific row using the UPDATE statement: Remove a set of values using the DELETE s…

585 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