<分区>
我正在尝试使用 List< int>使用此代码作为 SQL 参数:
var listID= new List<int>() { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
using (var sqlConnection = new SqlConnection(_connectionstring))
{
using (var cmd = new SqlCommand())
{
cmd.Connection = sqlConnection;
cmd.CommandText = "delete from MyTable where TableID in ( @tableID)";
string param = String.Join(",", listID.ToArray());
cmd.Parameters.Add("@tableID", param);
sqlConnection.Open();
cmd.ExecuteNonQuery();
}
sqlConnection.Close();
}
问题是，这段代码会生成:
exec sp_executesql N'delete from MyTable where TableID in ( @tableID)',N'@tableID nvarchar(17)',@tableID =N'1,2,3,4,5,6,7,8,9'
这会失败，因为:
Conversion failed when converting the nvarchar value '1,2,3,4,5,6,7,8,9' to data type int.
知道如何解决这个问题吗？谢谢。
编辑:我正在使用 MS SQL 2012