設置選項FbTransaction

Question

如何我可以在我的代碼中設置這個選項FbTransaction

write 
nowait 
rec_version 
read_committed 

執行插入/更新SQL語句：

FbConnectionStringBuilder fbConnStr = new FbConnectionStringBuilder(); 

using (FbConnection fbConn = new FbConnection(fbConnStr)) 
{ 
    fbConn.Open(); 
    using (FbTransaction fbTran = fbConn.BeginTransaction()) 
    { 
     using (FbCommand fbCmd = new FbCommand("insert into TEST values (1)", fbConn, fbTran) 
     { 
     fbCmd.CommandType = CommandType.Text; 
     fbCmd.ExecuteNonQuery(); 
     fbCmd.Transaction.Commit(); 
     } 
    } 
    fbConn.Close(); 
} 

Answer 1

你可以使用FbTransactionOptions：

FbTransaction transaction = Connection.BeginTransaction(
    FbTransactionOptions.ReadCommitted | 
    FbTransactionOptions.Write| 
    FbTransactionOptions.RecVersion| 
    FbTransactionOptions.NoWait | 
    ); 

請看IsolationLevel：

• IsolationLevel.ReadUncommitted
• IsolationLevel.ReadCommitted
• IsolationLevel.RepeatableRead
• IsolationLevel.Serializable

你可以這樣做：

FbTransaction transaction = Connection.BeginTransaction(IsolationLevel.Serializable);