描述

你可以從任意實現IDbConnection的類對象中調用Dapper的擴展方法“Execute”。它能夠執行一條命令（Command）一次或者多次，並返回受影響的行數。這個方法通常用來執行：

• Stored Procedure
• INSERT statement
• UPDATE statement
• DELETE statement

參數

下面表格中顯示了Execute方法的不同參數

示例：執行存儲過程

單次

執行存儲過程一次

string sql = "EXEC Invoice_Insert";

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

    var affectedRows = connection.Execute(sql,
        new {Kind = InvoiceKind.WebInvoice, Code = "Single_Insert_1"},
        commandType: CommandType.StoredProcedure);

    My.Result.Show(affectedRows);
}
 

多次

執行存儲過程多次，數組中的每條數據都執行一次

string sql = "EXEC Invoice_Insert";

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

    var affectedRows = connection.Execute(sql,
        new[]
        {
            new {Kind = InvoiceKind.WebInvoice, Code = "Many_Insert_1"},
            new
 
 {Kind = InvoiceKind.WebInvoice, Code = "Many_Insert_2"},
            new {Kind = InvoiceKind.StoreInvoice, Code = "Many_Insert_3"}
        },
        commandType: CommandType.StoredProcedure
    );

    My.Result.Show(affectedRows);
}

示例：執行插入

單次

執行插入語句一次

string sql = "INSERT INTO Invoice (Code) Values (@Code);";

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

    var affectedRows = connection.Execute(sql, new {Kind = InvoiceKind.WebInvoice, Code = "Single_Insert_1"});

    My.Result.Show(affectedRows);
}

多次

執行多次，數組中的每條數據都執行一次

string sql = "INSERT INTO Invoice (Code) Values (@Code);";

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

    var affectedRows = connection.Execute(sql,
        new[]
        {
            new {Kind = InvoiceKind.WebInvoice, Code = "Many_Insert_1"},
            new {Kind = InvoiceKind.WebInvoice, Code = "Many_Insert_2"},
            new {Kind = InvoiceKind.StoreInvoice, Code = "Many_Insert_3"}
        }
    );

    My.Result.Show(affectedRows);
}

示例：執行Update

單次

執行Update語句一次

string sql = "UPDATE Invoice SET Code = @Code WHERE InvoiceID = @InvoiceID";

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

    var affectedRows = connection.Execute(sql, new {InvoiceID = 1, Code = "Single_Update_1"});

    My.Result.Show(affectedRows);
}

多次

執行多次，數組中的每條數據都執行一次

string sql = "UPDATE Invoice SET Code = @Code WHERE InvoiceID = @InvoiceID";

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

    var affectedRows = connection.Execute(sql,
        new[]
        {
            new {InvoiceID = 1, Code = "Many_Update_1"},
            new {InvoiceID = 2, Code = "Many_Update_2"},
            new {InvoiceID = 3, Code = "Many_Update_3"}
        });

    My.Result.Show(affectedRows);
}

示例：執行Delete

單次

執行Delete語句一次

string sql = "DELETE FROM Invoice WHERE InvoiceID = @InvoiceID";

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

    var affectedRows = connection.Execute(sql, new {InvoiceID = 1});

    My.Result.Show(affectedRows);
}

多次

執行多次，數組中的每條數據都執行一次

string sql = "DELETE FROM Invoice WHERE InvoiceID = @InvoiceID";

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

    var affectedRows = connection.Execute(sql,
        new[]
        {
            new {InvoiceID = 1},
            new {InvoiceID = 2},
            new {InvoiceID = 3}
        });
}

Dapper入門教程（二）——執行非查詢語句