Solved

Error handling in Insert

Posted on 2013-01-31
3
162 Views
Last Modified: 2013-01-31
Hello Experts!!

I am trying to load a table using Insert statement.

My script will insert fine for the first time and when I run the same script once again, I ll get an error saying cannot insert duplicate values ( I have two columns and both are primary keys, so I cant insert duplicate values )

Is there a way to re-write it so that when I insert the second time and if there are any new records, it will insert them and the rest wont be inserted.

CAN WE DO THIS WITHOUT USING UPSERT/MERGE ??

Thanks!!!
0
Comment
Question by:ravichand-sql
[X]
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
3 Comments
 
LVL 12

Accepted Solution

by:
Jared_S earned 500 total points
ID: 38840404
Why not just eliminate the records prior to insert by using a NOT EXISTS statement against your table?

INSERT INTO Table1

SELECT * FROM Table2
WHERE NOT EXISTS
(SELECT null FROM Table1 WHERE Table1.Key = Table2.Key)
0
 
LVL 40

Expert Comment

by:lcohan
ID: 38840693
Same idea but using an EXCEPT sql function:

INSERT INTO Table1
SELECT * FROM Table2
EXCEPT
SELECT * FROM Table1 WHERE Table1.RowKey = Table2.RowKey
0
 

Author Comment

by:ravichand-sql
ID: 38840853
Thanks, it helped!!
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

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

Suggested Solutions

I have written a PowerShell script to "walk" the security structure of each SQL instance to find:         Each Login (Windows or SQL)             * Its Server Roles             * Every database to which the login is mapped             * The associated "Database User" for this …
Naughty Me. While I was changing the database name from DB1 to DB_PROD1 (yep it's not real database name ^v^), I changed the database name and notified my application fellows that I did it. They turn on the application, and everything is working. A …
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial

738 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