描述

QueryMultiple是一个可以从IDbConnection类型的任意对象调用的扩展方法，它可以在相同的命令和映射结果中执行多个查询。

string sql = "SELECT * FROM Invoice WHERE InvoiceID = @InvoiceID; SELECT * FROM InvoiceItem WHERE InvoiceID = @InvoiceID;";

using (var connection = My.ConnectionFactory())
{
    connection.Open();

    using (var multi = connection.QueryMultiple(sql, new {InvoiceID = 1}))
    {
        var invoice = multi.Read<Invoice>().First();
        var invoiceItems = multi.Read<InvoiceItem>().ToList();
    }
}

参数

下表显示了QueryMultiple方法的不同参数。