Skip to content

Instantly share code, notes, and snippets.

@akinozgen

akinozgen/alter-table-ignore-dupes.sql

Forked from dsmrt/alter-table-ignore-dupes.sql
Created October 4, 2021 14:52
Show Gist options
  • Save akinozgen/2821fef804a52370efc84393aac77dc0 to your computer and use it in GitHub Desktop.
Save akinozgen/2821fef804a52370efc84393aac77dc0 to your computer and use it in GitHub Desktop.
Download ZIP
Mysql - Remove duplicates by adding a unique key.
Raw
alter-table-ignore-dupes.sql
-- Reference: https://stackoverflow.com/questions/36647058/removing-duplicates-with-unique-index
ALTER IGNORE TABLE mytable ADD UNIQUE INDEX myindex (A, B, C, D);
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment