You are given the following database schema: Sailors(sid, sname, rating, age) Boats(bid, bname, color) Reserves(sid, bid, day) Consider the join on Sailors ▷◁ Reserves and assume that you have the following statistics and limitations: * You have available 9 pages in main memory. * Sailors: 100000 tuples, 1000 pages; Boats: 2000 tuples, 10 pages; Reserves: 110000 tuples, 550 pages

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Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.