对于TSQL插入/更新触发器,可以插入和删除都为空吗？

CREATE TRIGGER trigger_name
ON table_name
AFTER INSERT, UPDATE, DELETE
AS
BEGIN
    -- 触发器逻辑
END

CREATE TRIGGER tr_table_name
ON table_name
AFTER INSERT, UPDATE
AS
BEGIN
    -- 插入操作时，将数据插入另一个表
    INSERT INTO another_table (column1, column2)
    SELECT column1, column2
    FROM INSERTED;

    -- 删除操作时，将数据从另一个表中删除
    DELETE FROM another_table
    WHERE EXISTS (SELECT 1 FROM DELETED WHERE another_table.id = DELETED.id);
END