URGENT - Help in mySql query

hi, I want to write one query. I have 2 tables one as a master and another as detail. 1) newsletter - master table - ID and title is stored 2) newsletterArticle - details table - artID, refID (ref of master table) and body text is stored. I want to display the newsletter only if I found corresponding record in newsletterArticle. i.e if in newsletter there is an entry for ID 1, but no article in newsletterArticle, then I do not want to display that record. This I want to achieve in single query. Something like below select ID from newsletter where (select count(*) from newsletterArticle where refID = the ID of newsletter ???? > 0) Platform - PHP / mySql /BSDi Any help ? It is very urgent manisha