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我想的ObjectQuery为选择的ObjectQuery lambda表达式内选择
SELECT *
FROM tableA
WHERE ID in (SELECT ID in tableB)
创建这样使用lambda表达式查询我尝试使用
var histories = _entities.ProductViewHistories.Take(5).OrderByDescending(p=>p.DateViewed);
var products = _entities.Products.Where(p => p.ID in histories);
,但它不工作。 有人能指引我走向正确的方向吗?
谢谢