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ORA-02048: attempt to begin distributed transaction without logging on

9e20fbaa-33a4-4da7-9744-e735ff77b754
Member Posts: 1
This is an old topic ( ), but I'm still in trouble with it.
string connectionString = (new OracleConnectionStringBuilder() { UserID = "USER_TMP", Password = "********", DataSource = "localhost:1521/xe", Pooling = true, ConnectionTimeout = 15, ConnectionLifeTime = 0 }).ConnectionString;// Looks like: USER ID=USER_TMP;POOLING=True;CONNECTION TIMEOUT=15;PASSWORD=********;DATA SOURCE=localhost:1521/xe;CONNECTION LIFETIME=0using (TransactionScope scope = new TransactionScope()){ using (OracleConnection cnx = new OracleConnection(connectionString)) { cnx.Open(); // here occurs exception }}
Database : Oracle Database 10g Express Edition Release 10.2.0.1.0 - Product (something I can't change)
Nuget: Oracle.ManagedDataAccess (tried from 12.2.1100 to 19.7.0)
Framework: .Net 4.5.1
The only particular thing is that this code run on a different thread.
I don't really understand the exception message since I'm on a local database.
I also tried with these options to transaction:
using (TransactionScope scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.RequiresNew))
Tagged:
Answers
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Are you planning to use a distributed transaction? If not, you can try setting the connection pool attribute "Enlist" to either "false" or "dynamic". By default, it is set to true.