Sql 如何使用复合主键从表中删除？

我有组合主键的表角色。我必须从中删除值，并检查它们是否不等于触发器中的某个值。我需要怎么做

表的代码：

CREATE TABLE Role
(
    roleName VARCHAR(50),
    groupId  INT,
    CONSTRAINT FK_Group FOREIGN KEY (groupId) REFERENCES [Group] (groupId),
    PRIMARY KEY (roleName, groupId),
    canBan   TINYINT DEFAULT (0) /* 0 or 1 */
)

触发器代码，未经批准

CREATE TRIGGER DeleteRoleTrigger
    ON [Role]
    INSTEAD OF DELETE
    AS
BEGIN
    IF 'everyone' IN (SELECT roleName FROM deleted)
        BEGIN
            THROW 50002, 'Cannot delete role "everyone"! Nothing is deleted', 1
            --   id severity state
        END
    ELSE
        BEGIN
            -- todo
            DELETE
            FROM Role
            WHERE (EXISTS(SELECT groupId, roleName FROM deleted))

            PRINT N'Роль удалена'
        END
END
GO

---

问题可能出现在存在SELECT groupId、roleName FROM deleted的行。我建议在delete语句中使用内部联接，如下所示

DELETE r
FROM Role r
INNER JOIN deleted d
  ON r.groupId = d.groupId AND r.roleName = d.roleName

---

问题可能出现在存在SELECT groupId、roleName FROM deleted的行。我建议在delete语句中使用内部联接，如下所示

DELETE r
FROM Role r
INNER JOIN deleted d
  ON r.groupId = d.groupId AND r.roleName = d.roleName

---

您可能需要更改此触发器的其他部分

DELETE r
FROM [Role] r join deleted d
on (r.groupId = d.groupId and r.roleName =d.roleName)

或

---

您可能需要更改此触发器的其他部分

DELETE r
FROM [Role] r join deleted d
on (r.groupId = d.groupId and r.roleName =d.roleName)

或

exists子查询与外部delete查询不相关。如果删除中存在任何行，则它将删除角色中的所有行。可能不是所需的功能。exists子查询与外部delete查询不相关。如果删除中存在任何行，则它将删除角色中的所有行。可能不是期望的功能。