They are used to compare two values. Their functions are shown in the table below

Operator |
Relation tested |
Example |

= | Equality | X = Y |

< > | Inequality | X<> Y |

< | Less than | X < Y |

> | Greater than | X > Y |

< = | Less than or equal to | X< = Y |

> = | Greater than or equation | X > = Y |

The hierarchy of the relational operation is =, >, <, <>, < = and >=