摘要：
ValueTuple需要通过NuGet安装System.ValueTuple https://docs.microsoft.com/en-us/dotnet/csharp/tuples?view=netframework-4.7.2 https://docs.microsoft.com/en-us/ 阅读全文
摘要：
SET IDENTITY_INSERT (Transact-SQL) Allows explicit values to be inserted into the identity column of a table. Remarks At any time, only one table in a 阅读全文