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Editorial Team
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Asked: 2026-05-20T11:04:36+00:00

HI all , i have a table with column email [someone@email.com] , i have

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HI all ,

i have a table with column email [someone@email.com] , i have 2.8 million records and i created a new column user and wish to add everything before the @ sign in the email field to the user field , is it possible with pure MySQL ?

Thank you .

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1 Answer

  1. Editorial Team

    Try with:

    UPDATE table
   SET user = SUBSTRING_INDEX(email, '@', 1)
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