…used so using values generated elseware might be faster. 3. Using multiple databases Honestly I do …Join. This is typical error. On other hand in MySQL you might be better of using several queries than…use IN() than do 100 of queries in this case. This most applies to subqueries Where Subselects with …

… so using values generated elseware > might be faster. I disagree with you on this completely … Join. This is typical error. On other hand in MySQL you might be > better of using several queries than…use IN() than do 100 of queries in this case. > This most applies to subqueries Where Subselects with…