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                # DBMS 中的關系模型 > 原文: [https://beginnersbook.com/2015/04/relational-model-in-dbms/](https://beginnersbook.com/2015/04/relational-model-in-dbms/) 在關系模型中,數據和關系由相互關聯的表的集合表示。每個表都是一組列和行,其中列表示實體的屬性,行表示記錄。 **樣本關系模型**:具有 3 列和 4 個記錄的學生表。 **表:學生** | `Stu_Id` | `Stu_Name` | `Stu_Age` | | --- | --- | --- | | 111 | Ashish | 23 | | 123 | Saurav | 22 | | 169 | Lester | 24 | | 234 | Lou | 26 | **表:課程** | `Stu_Id` | `COURSE_ID` | `COURSE_NAME` | | --- | --- | --- | | 111 | C01 | Science | | 111 | C02 | DBMS | | 169 | C22 | Java | | 169 | C39 | Computer Networks | 這里`Stu_Id`,`Stu_Name`和`Stu_Age` 是表`Student`的屬性,`Stu_Id`,`Course_Id`和`Course_Name`是`Course`表的屬性。具有值的行是記錄(通常稱為元組)。
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