Question

        using (var connection = new SqlConnection(FiddleHelper.GetConnectionStringSqlServerW3Schools()))
    {
        var sql = "Select * FROM CUSTOMERS WHERE CustomerID in @abc";
        var affectedRows = connection.Execute(sql, new { abc = 53 });
        connection.BulkDelete(connection.Query<Customer>(sql).ToList());
    }

以上代码无法正常工作。可以使用任何方法代替直接在查询“ connection.BulkDelete（connection.Query（” Select * FROM（CUSTOMERS WHERE CustomerID in（53）“）.ToList（））; ”）中传递值。将弹性值传递给BulkDelete？谢谢

Answer 1

您没有使用受影响的行：

using (var connection = new SqlConnection(FiddleHelper.GetConnectionStringSqlServerW3Schools()))
{
    var sql = "Select * FROM CUSTOMERS WHERE CustomerID in @abc";
    var affectedRows = connection.Execute<Customer>(sql, new { abc = 53 });
    connection.BulkDelete(affectedRows.ToList());
}

Answer 2

我不知道BulkDelete的工作方式；没用过。但是，我认为您的查询中存在语法错误。 IN子句的输入应放在圆括号内，如下所示：

var sql = "Select * FROM CUSTOMERS WHERE CustomerID in (@abc)";

观察上面的圆括号。

connection.BulkDelete(connection.Query("Select * FROM CUSTOMERS WHERE CustomerID in (53)").ToList());

您可以看到，这里的参数包含在圆括号中。

将值传递给BulkDelete的sql

2 个答案: