将SQL查询转换为LinQ

Question

由于来自客户的奇怪请求，我已设法弄清楚如何实施它 使用SQL查询，但我无法将其翻译成LinQ。

 SELECT (SELECT count(*) FROM table1 where attribute1 like 'value1'),
        (SELECT count(*) FROM table2 where attribute2 like 'value2')

查询到LinQ的翻译是什么？

Answer 1

var count1 = (from i in table1 where SqlMethods.Like(i.attribute1, "value1") select i).Count();
var count2 = (from i in table2 where SqlMethods.Like(i.attribute2, "value2") select i).Count();

Answer 2

您可以为Count()函数提供谓词

var result = new { 
            Count1 = table1.Count(r => r.attribute1.Contains("value1")), 
            Count2 = table2.Count(r => r.attribute2.Contains("value2")) 
        };