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I need to update over 400 email address in a table in the database.  I need to keep the first half of the email address and change everything after the '@' symbol.

Example:  FROM:  john.doe@oldname.com  -- TO:  john.don@newcompanyname.com

Is there any easy way?

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If you're using MySQL, it has a replace() function https://dev.mysql.com/doc/refman/5.7/en/string-functions.html#function_replace

It would look something like this:

UPDATE `table` SET `field` = REPLACE(`field`, 'oldname.com', 'newcompanyname.com')

Do not copy and paste that code because you might ruin your whole table. I haven't tested it to see if it does exactly what I expect it to, so you should run it on a test table and tweak the code if necessary.

If you're not using MySQL then you'll need to loop through all the records, process them in a server-side language and then update them.

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didn't work -- only replaces complete email address with the field name:

UPDATE    cicntp
SET             cnt_email = REPLACE ('cnt_email', 'oldname.com', 'newcompanyname.com')
WHERE     (cnt_email LIKE '%@oldname.com')


___ results are email address goes to "cnt_email" and nothing more.

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