如何改变这个＆＃34;选择＆＃34;进入Lambda表达式

Question

有谁知道如何转换以下内容＆＃34;选择＆＃34;进入lambda表达式？

SELECT * FROM table1 WHERE OID IN (SELECT OIDPhone FROM table2 WHERE city = 'New York')

Answer 1

你可以这样做：

var subQuery = db.OIDPhone.Where(r=> r.City == "New York").Select(r=> r.OIDPhone);
var finalQuery = db.Table1.Where(r=> subQuery.Contains(r.OID));