"The following example does a group join between product and category. This is essentially the left join. The into expression returns data even if the category ... ... <看更多>

LINQ Left Join 多表多條件式. GitHub Gist: instantly share code, notes, and snippets. ... <看更多>

LINQ To DB supports all standard SQL join types: INNER, LEFT, FULL, RIGHT, CROSS JOIN. For join types that do not have a direct LINQ equivalent, such as a left ... ... <看更多>

使用 DefaultIfEmpty ，如果找不到匹配項，傳統的Linq Join 可以返回預設物件。 ... on l equals (int)r into leftJoin from result in leftJoin. ... <看更多>