## Discussion Forum

Que. | With regard to the expressive power of the formal relational query languages, which of the following statements is true? |

a. | Relational algebra is more powerful than relational calculus |

b. | Relational algebra has the same power as relational calculus |

c. | Relational algebra has the same power as safe relational calculus |

d. | None of the above |

Answer:Relational algebra has the same power as safe relational calculus |