sql - Removing Duplicate Rows From MySQL Table -


so, have mysql database setup:

+--------------------+----------+ | email              | password | +--------------------+----------+ | example@gmail.com  | xxx      | | example2@yahoo.com | xxx      | | example@gmail.com  | xxx      | +--------------------+----------+

i want delete duplicate row(s) email , password same.

any ideas on how this?

while have populated table , gordon's answer amble current situation , possibly fastest solution, prevent entering duplicates in future should:

create unique (composite) index on column(s) wish unique. in case sql like: 

alter table yourtablename  add unique index idx_unq(`email`,`password`);

then insert ignore into instead of insert into. ignore duplicate future entries populating in table.

this post may you.

"insert .. on duplicate key update" inserts new entries rather replace?


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