×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Eliminate records duplication other than using DISTINCT and GROUP BY

Eliminate records duplication other than using DISTINCT and GROUP BY

Eliminate records duplication other than using DISTINCT and GROUP BY

(OP)
Hi,
I have a table like this

Cus_no Add_type Addr1 Addr2 Addr3 Zipcode

with primary keys being Cus_no and Add_type. There are thousand of customer records. And there are more than one record (address) for each customer. Now, I intend to extract only one record (address) per customer whichever come first using SQL. I have tried using SELECT statement with DISTINCT and GROUP BY but both doesn't eliminate the records duplication. Somebody please advice me. Thanks in advance.

RE: Eliminate records duplication other than using DISTINCT and GROUP BY

hi,

I am not able to understand the question. Please send me the details. I need the table structure and constraints information. my mail id is biosraman@yahoo.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources