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I have a table that looks like this:

 iD PhoneNumber EmailAddress 1 06543635463 NULL 1 NULL [email protected] 2 NULL [email protected] 2 0298754355 NULL 3 0543280545 NULL

And I'm tryong to concatenate the rows so they look like this:

id PhoneNumber EmailAddress 1 06543635463 [email protected] 2 0298754355 [email protected] 3 0543280545 NULL

Any help would be appreciated. Thanks so much.

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  • So which data type do you want? Commented Nov 9, 2016 at 15:35
  • That would be deduplication, not concatenation. Commented Nov 9, 2016 at 15:36
  • I guess you inserted records instead of update for same ID. Commented Nov 9, 2016 at 15:38

1 Answer 1

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That's not a concatenation, it's a simple aggregation. Sounds like you could use MIN or MAX:

SELECT id, MAX(PhoneNumber) PhoneNumber, MAX(EmailAddress) EmailAddress FROM dbo.YourTable GROUP BY id;
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