Failed to execute the SQL query

select c.title, c.icon, i.title from  az_channels  c,  az_item  i where c.id =  and i.cid=c.id and i.id=16826

Error 1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'and i.cid=c.id and i.id=16826' at line 1