Example Queries Find the names of all customers who have an account at all branches located in Brooklyn: (t3r e customer (t [customer_name ]=r[customer_name ] (Vu∈branch(u[branch_city]=“Brooklyn”→ 3s e depositor(t [customer_name =s [customer_name 3w e account w[account_number ]=s [account_number (w[branch_name ]u [branch_name ])))) Database System Concepts-5th Edition,July 8,2005 5.10 @Silberschatz,Korth and SudarshanDatabase System Concepts - 5 5.10 ©Silberschatz, Korth and Sudarshan th Edition, July 8, 2005 Example Queries Find the names of all customers who have an account at all branches located in Brooklyn: {t |  r  customer (t [customer_name ] = r [customer_name ])  (  u  branch (u [branch_city ] = “Brooklyn”   s  depositor (t [customer_name ] = s [customer_name ]   w  account ( w[account_number ] = s [account_number ]  ( w [branch_name ] = u [branch_name ]))))}