MSSqlServer error:the transaction is completed

Question

我在尝试处理事务时遇到错误。没有它一切都运行正常，但是有了它我得到一个奇怪的错误：交易完成并且不能再使用（我对错误的翻译）

这是我的错误代码：

using (var conn = new SqlConnection(gl.constr))
{
    using (SqlCommand cm = new SqlCommand())
    {
        conn.Open();
        using (SqlTransaction tr = conn.BeginTransaction())
        {
            try
            {
                cm.Connection = conn;
                cm.Transaction = tr;
                cm.CommandText = "INSERT INTO Bookings (Time, Price, BookingRef, BookingInternalRef)" +
                                  " VALUES(" +
                                  "getdate(), "+ sPrice + ", " + 
                                  db.AddAphens(reference) + ", " +
                                  db.AddAphens(internalBookref) +
                                  ")";
                cm.ExecuteNonQuery();  //this works
                tr.Commit();

提交时弹出错误提示。

Answer 1

您不需要为单个 DML 操作显式事务声明 SqlTransaction tr = conn.BeginTransaction()，因为每个 DML 操作都将被隐式事务绑定。因此，您可以一起删除您的交易声明，它应该可以正常工作

MSSqlServer error:the transaction is completed

MSSqlServer error:the transaction is completed

c#

sql-server

transactions

commit