MySQL：是否有一种方法可以在名为bootstrap.scss的表中创建列，其中 /*!
* Bootstrap v4.1.3 (https://getbootstrap.com/)
* Copyright 2011-2018 The Bootstrap Authors
* Copyright 2011-2018 Twitter, Inc.
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
*/
@import "functions";
@import "variables";
@import "mixins";
@import "root";
@import "reboot";
@import "type";
@import "images";
@import "code";
@import "grid";
@import "tables";
@import "forms";
@import "buttons";
@import "transitions";
@import "dropdown";
@import "button-group";
@import "input-group";
@import "custom-forms";
@import "nav";
@import "navbar";
@import "card";
@import "breadcrumb";
@import "pagination";
@import "badge";
@import "jumbotron";
@import "alert";
@import "progress";
@import "media";
@import "list-group";
@import "close";
@import "modal";
@import "tooltip";
@import "popover";
@import "carousel";
@import "utilities";
@import "print";
的类型为DATE，而<Birthdate, Age>的类型基于<Birthdate>？