是否总是需要数据适配器？

Question

如果有一个我只想执行的查询，并且不需要在 table 中填充任何数据，那么是否有必要为此目的使用数据适配器？

Answer 1

不，没有必要使用 SqlDataAdapter。它实际上是数据集和 Sql 服务器之间的桥梁。

You can use the ExecuteNonQuery to perform catalog operations (for example, querying the structure of a database or creating database objects such as tables), or to change the data in a database without using a DataSet by executing UPDATE, INSERT, or DELETE statements. Although the ExecuteNonQuery returns no rows, any output parameters or return values mapped to parameters are populated with data.

using (SqlConnection conn = new SqlConnection(
           "your connection string"))
{
      using (SqlCommand command = new SqlCommand("your sql", conn)
      {
        conn.Open();
        command.ExecuteNonQuery();
      }
}

是否总是需要数据适配器？

Is a Data Adapter always needed?

sql-server

dataadapter