I need handle exception duplicate. var resource = new Reso开发者_C百科urce() { url = tbUrl.Text };
I am trying to map two concrete entity types and an abstract base type to the same database table. The table contains a bit column that does not accept null. Column has a default value: ((0)).
i got thrown into a small .NET migration project that is using the Entity Framework and MS SQL Server 2005. when persisting data that is not working with db schema (e.g. a string is too long), I am ge
I have a similar problem. I want to make two inserts in the same transactionscope. The objects are related and have a FK relationship between them, but for several reasons I do not want to connect th
I have a table of Plants and Information. Plants have an ID, Name, ..., MainInformationID Information have an ID, Title, ..., PlantID
李修颜 2022-07-01 11:32 开发者_运维技巧因为空气连续传染，再加入人们的平常生活中存在的种种不良习惯，造成很多朋友患上不孕不育症。关于这部分朋友因此言，或许只可以经过人为辅助生育技术来完成自己的生育
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