mysql - getting error #1242 while deleting data from the table -

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i trying delete data table , query below:

delete mybadge uid=5 , badge_name=(select concat(tag_name,'-beginner') tag,post_tags post_tags.tag_id=tag.tag_id);

i getting 5 records select statement, want delete 5 records.

use- 'in' keyword instead of '=' sign

delete mybadge uid=5 , badge_name in (select concat(tag_name,'-beginner') tag,post_tags post_tags.tag_id=tag.tag_id);

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