We may have assigned some indexes to a table, and sometimes there is a need to remove those latched indexes from the table. DROP INDEX is explicitly used for that.
ALTER TABLE table_name DROP INDEX index_name;
- Now we have a table called "rec" and want to remove the unique index assigned to it.
- Let us use this query to do this.
Here is the index of the rec table.
ALTER TABLE rec DROP INDEX unique_email;
- The unique index assigned to the email has been removed. Let us check it out.
SHOW INDEXES FROM rec;
- We can see here that the mentioned index has been removed.