A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...
LINQ (Language Integrated Query) is a query execution pipeline that adds query capabilities to languages targeted at the managed environment of .Net. LINQ to SQL is an ORM (Object Relational Mapper) ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果