删除我的书,bookcategories表和类别 它看起来像这样 Book
Id uniqueidentifier,
Title varchar(255),
Author varchar(255),
Deleted datetime
BookCategory
BookId
CategoryId
Category
Id u
我有一个简单的表,如下所示。 create table chemlab.rule_header (
id serial PRIMARY KEY,
name varchar(50),
grade varchar(20),
class_tag varchar(20), --tag added to sammple if match
parent