## Discussion Forum

Que. | Consider the relations r1(P, Q, R) and r2(R, S, T) with primary keys P and R respectively. The relation r1 contains 2000 tuples and r2 contains 2500 tuples. The maximum size of the join r1⋈ r2 is : |

a. | 2000 |

b. | 2500 |

c. | 4500 |

d. | 5000 |

Answer:2000 |