如何使用C#为sql server的表添加列?

如何使用C#为sql server的表添加列?

例如,我想在C#代码中执行以下sql:

alter table [Product] add [ProductId] int default 0 NOT NULL 

您应该使用命令:

 using (DbConnection connection = new SqlConnection("Your connection string")) { connection.Open(); using (DbCommand command = new SqlCommand("alter table [Product] add [ProductId] int default 0 NOT NULL")) { command.Connection = connection; command.ExecuteNonQuery(); } } 
 SqlCommand cmd2 = new SqlCommand(); // create columns for healed cmd2 = new SqlCommand("ALTER TABLE TotalHeals ADD "+Healee+" INT", openCon); cmd2.ExecuteNonQuery(); 

有趣的是SqlCommand与DBCommand有什么不同