将 SQL 转换为 Linq 查询

Question

我正在尝试将以下查询的输出放入 Linq 查询中

SELECT SearchQueries.Query,
       Clicks.Name,
       COUNT (SearchQueries.Query) AS Hits
FROM SearchQueries
INNER JOIN Clicks ON Clicks.SearchqueryId = SearchQueries.Id
GROUP BY SearchQueries.Query, Clicks.Name
ORDER BY Hits DESC

但我似乎不知道该怎么做；这是我目前所拥有的

var result =
    _db.Clicks.Select(q => q)
        .GroupBy(q => q.Name, g => g.Searchquery.Query)
        .ToDictionary(g=> g.Key, g => g);

但我该如何继续？

结果是这样的：

+---------------+-------------------+------+
|Query          | Name              | Hits |
+---------------+-------------------+------+
|tag            | dnfsklmfnsd       | 53   |
|tag2           | dgsqfsdf          | 17   |
+---------------+-------------------+------+

原始表格如下所示

搜索查询;

+---+-------+
|Id | Query |
+---+-------+
| 1 | tag   | x 53
| 2 | tag2  | x 17
+---+-------+

点击次数;

+---+-------------------+---------------+
|Id | Name              | SearchqueryId |
+---+-------------------+---------------+
| 1 | dnfsklmfnsd       | 1             |
| 2 | dgsqfsdf          | 2             |
+---+-------------------+---------------+

Answer 1

好吧，如果你有一个导航属性点击搜索查询，你可以这样做

var result =
    _db.Clicks
        .GroupBy(m => new {name = m.Name, query = m.Searchquery.Query)
        .Select(g => new {
           Query = g.Key.query,
           Name = g.Key.name,
           Hits = g.Count()
});

Answer 2

尝试使用GroupBy和Count：（我把表达式中的顺序改为使用SearchQueries作为"base table"，只是为了更容易比较到 SQL-语句)

var result =
    _db.SearchQueries
       .GroupBy(sq => new { name = sq.Clicks.Name, query = sq.Query)
       .Select(sq => new {
                           Query = sq.Query,
                           Name = sq.Clicks.Name,
                           Hits = sq.Count()
                         })
       .OrderByDescending(sq => sq.Hits);

将 SQL 转换为 Linq 查询

Converting SQL to Linq query

c#

sql

linq

sql-to-linq-conversion