mysql - SQL Entry's Duped -
i messed when trying create test database , accidently duplicated within of table. there 2 of every entry there 1 time before. there simple way prepare this? (using innodb tables)
yet reason utilize auto incrementing primary keys. way, rows wouldn't total duplicates.
probably fastest way re-create info table, truncate first table, , re-insert it:
create temporary table tmp select distinct * test; truncate table test; insert test select * tmp;
as little note: in cases, recommend using finish column list on insert
statement. 1 case optional. after all, putting columns in table , putting them statement later.
mysql duplicates duplicate-removal heidisql
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