using (OracleConnection conn = new OracleConnection(connStr))
For legacy systems already using Oracle.DataAccess , maintain it with proper connection handling, parameterization, and transaction management to ensure stability and performance. Last updated: 2025 Oracle.DataAccess version coverage: 4.112.x to 4.122.x (for .NET Framework) oracle.dataaccess
using (OracleDataReader reader = cmd.ExecuteReader()) maintain it with proper connection handling
conn.Open(); OracleTransaction tx = conn.BeginTransaction(); try OracleCommand cmd = conn.CreateCommand(); cmd.Transaction = tx; cmd.CommandText = "UPDATE accounts SET balance = balance - 100 WHERE id = 1"; cmd.ExecuteNonQuery(); cmd.CommandText = "UPDATE accounts SET balance = balance + 100 WHERE id = 2"; cmd.ExecuteNonQuery(); tx.Commit(); catch tx.Rollback(); throw; OracleTransaction tx = conn.BeginTransaction()
conn.Open(); OracleCommand cmd = new OracleCommand("SELECT first_name, last_name FROM employees WHERE department_id = :deptId", conn); cmd.Parameters.Add("deptId", OracleDbType.Int32).Value = 10;
bulkCopy.DestinationTableName = "TEMP_EMPLOYEES"; bulkCopy.BatchSize = 500; bulkCopy.WriteToServer(dt);
DataTable dt = new DataTable(); // ... fill DataTable using (OracleConnection conn = new OracleConnection(connStr))