## Discussion Forum

Que. | Select operation in SQL is equivalent to |

a. | the selection operation in relational algebra |

b. | the selection operation in relational algebra, except that select in SQL retains duplicates |

c. | the projection operation in relational algebra |

d. | the projection operation in relational algebra, except that select in SQL retains duplicates |

Answer:the projection operation in relational algebra, except that select in SQL retains duplicates |