How to use conditional aggregation sql query in Entity Framework?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am using Asp.Net MVC 5 and Entity Framework 6.2.0 with LINQ Extension Methods syntax. I have 5 tables of variants, details below: Product Table: ProductID Name 12 T-Shirt Variant Table: VariantID ProductID Name 1 12 Size 2 12 Color 3 12 Material VariantOption Table: VariantOptionID VariantID VariantOptionName 1 1 Small 2 1 Medium 3 2 Red 4 2 Blue 5 3 Cotton 6 3 Lawn Sku Table: SkuID ProductID SKU Price Barcode 1 12 Th-Sm-Red-Cot 120.00 345423 2 12 Th-Sm-Red-Lon 130.00 345454 3 12 Th-Sm-Blue-Cot 140.00 345451 4 12 Th-Sm-Blue-Lon 150.00